diff --git a/Duckling/Numeral/AR/Rules.hs b/Duckling/Numeral/AR/Rules.hs
index f7e47e10..37e638db 100644
--- a/Duckling/Numeral/AR/Rules.hs
+++ b/Duckling/Numeral/AR/Rules.hs
@@ -110,6 +110,69 @@ ruleInteger21 = Rule
       _ -> Nothing
   }
 
+ruleInteger300 :: Rule
+ruleInteger300 = Rule
+  { name = "integer 300"
+  , pattern =
+    [ regex "(ثلاث)ما?[ئي][ةه]"
+    ]
+  , prod = \_ -> integer 300
+  }
+
+ruleInteger400 :: Rule
+ruleInteger400 = Rule
+  { name = "integer 400"
+  , pattern =
+    [ regex "([أا]ربع)ما?[ئي][ةه]"
+    ]
+  , prod = \_ -> integer 400
+  }
+
+ruleInteger500 :: Rule
+ruleInteger500 = Rule
+  { name = "integer 500"
+  , pattern =
+    [ regex "(خمس)ما?[ئي][ةه]"
+    ]
+  , prod = \_ -> integer 500
+  }
+
+ruleInteger600 :: Rule
+ruleInteger600 = Rule
+  { name = "integer 600"
+  , pattern =
+    [ regex "(ست)ما?[ئي][ةه]"
+    ]
+  , prod = \_ -> integer 600
+  }
+
+ruleInteger700 :: Rule
+ruleInteger700 = Rule
+  { name = "integer 700"
+  , pattern =
+    [ regex "(سبع)ما?[ئي][ةه]"
+    ]
+  , prod = \_ -> integer 700
+  }
+
+ruleInteger800 :: Rule
+ruleInteger800 = Rule
+  { name = "integer 800"
+  , pattern =
+    [ regex "(ثمان[ي]?)ما?[ئي][ةه]"
+    ]
+  , prod = \_ -> integer 800
+  }
+
+ruleInteger900 :: Rule
+ruleInteger900 = Rule
+  { name = "integer 900"
+  , pattern =
+    [ regex "(تسع)ما?[ئي][ةه]"
+    ]
+  , prod = \_ -> integer 900
+  }
+
 ruleDecimalWithThousandsSeparator :: Rule
 ruleDecimalWithThousandsSeparator = Rule
   { name = "decimal with thousands separator"
@@ -402,6 +465,13 @@ rules =
   , ruleInteger5
   , ruleInteger7
   , ruleInteger9
+  , ruleInteger300
+  , ruleInteger400
+  , ruleInteger500
+  , ruleInteger600
+  , ruleInteger700
+  , ruleInteger800
+  , ruleInteger900
   , ruleIntegerWithThousandsSeparator
   , ruleMultiply
   , ruleNumeralDotNumeral
diff --git a/Duckling/Quantity/AR/Corpus.hs b/Duckling/Quantity/AR/Corpus.hs
index c31c99bc..3a09efbc 100644
--- a/Duckling/Quantity/AR/Corpus.hs
+++ b/Duckling/Quantity/AR/Corpus.hs
@@ -9,6 +9,7 @@
 
 module Duckling.Quantity.AR.Corpus
   ( corpus
+  , negativeCorpus
   ) where
 
 import Data.String
@@ -19,6 +20,15 @@ import Duckling.Quantity.Types
 import Duckling.Resolve
 import Duckling.Testing.Types
 
+negativeCorpus :: NegativeCorpus
+negativeCorpus = (testContext, testOptions, examples)
+  where
+    examples =
+      [ "جمبري"
+      , "جمهور"
+      , "غمامة"
+      ]
+
 corpus :: Corpus
 corpus = (testContext {locale = makeLocale AR Nothing}, testOptions, allExamples)
 
diff --git a/Duckling/Ranking/Classifiers/AR_EG.hs b/Duckling/Ranking/Classifiers/AR_EG.hs
index dae16d40..e2a49042 100644
--- a/Duckling/Ranking/Classifiers/AR_EG.hs
+++ b/Duckling/Ranking/Classifiers/AR_EG.hs
@@ -65,13 +65,6 @@ classifiers
                    koData =
                      ClassData{prior = -infinity, unseen = -1.3862943611198906,
                                likelihoods = HashMap.fromList [], n = 0}}),
-       ("noon|midnight|EOD|end of day",
-        Classifier{okData =
-                     ClassData{prior = -infinity, unseen = -0.6931471805599453,
-                               likelihoods = HashMap.fromList [], n = 0},
-                   koData =
-                     ClassData{prior = 0.0, unseen = -1.3862943611198906,
-                               likelihoods = HashMap.fromList [("", 0.0)], n = 2}}),
        ("<hour-of-day> third",
         Classifier{okData =
                      ClassData{prior = 0.0, unseen = -2.0794415416798357,
@@ -119,7 +112,7 @@ classifiers
                                likelihoods = HashMap.fromList [], n = 0}}),
        ("<day-of-month> (ordinal or number) <named-month>",
         Classifier{okData =
-                     ClassData{prior = -0.3101549283038396,
+                     ClassData{prior = -0.2411620568168881,
                                unseen = -3.4339872044851463,
                                likelihoods =
                                  HashMap.fromList
@@ -133,14 +126,13 @@ classifiers
                                     ("integer (numeric)March", -2.70805020110221)],
                                n = 11},
                    koData =
-                     ClassData{prior = -1.3217558399823195, unseen = -2.833213344056216,
+                     ClassData{prior = -1.540445040947149, unseen = -2.70805020110221,
                                likelihoods =
                                  HashMap.fromList
-                                   [("integer (numeric)in <named-month>", -2.0794415416798357),
-                                    ("integer (numeric)August", -2.0794415416798357),
-                                    ("month", -1.1631508098056809),
-                                    ("integer (numeric)July", -1.6739764335716716)],
-                               n = 4}}),
+                                   [("integer (numeric)in <named-month>", -1.9459101490553135),
+                                    ("month", -1.252762968495368),
+                                    ("integer (numeric)July", -1.540445040947149)],
+                               n = 3}}),
        ("<time> <part-of-day>",
         Classifier{okData =
                      ClassData{prior = -0.41616039722491244,
@@ -327,36 +319,37 @@ classifiers
                                likelihoods = HashMap.fromList [], n = 0}}),
        ("on <date>",
         Classifier{okData =
-                     ClassData{prior = -0.6931471805599453, unseen = -3.713572066704308,
+                     ClassData{prior = -0.6131044728864089,
+                               unseen = -3.7612001156935624,
                                likelihoods =
                                  HashMap.fromList
                                    [("<day-of-month> (ordinal or number) <named-month>",
-                                     -2.5902671654458267),
-                                    ("September", -2.995732273553991),
+                                     -2.639057329615259),
+                                    ("September", -3.044522437723423),
+                                    ("second", -3.044522437723423),
                                     ("<day-of-month> (ordinal or number) of <named-month>",
-                                     -2.995732273553991),
-                                    ("day", -1.3862943611198906), ("year", -2.5902671654458267),
-                                    ("part of <named-month>", -2.0794415416798357),
-                                    ("month", -2.995732273553991),
-                                    ("year (integer)", -2.5902671654458267),
-                                    ("this|last the <cycle>", -2.995732273553991),
-                                    ("day of <named-month>", -2.995732273553991)],
-                               n = 12},
+                                     -3.044522437723423),
+                                    ("day", -1.4350845252893227), ("year", -2.639057329615259),
+                                    ("part of <named-month>", -2.128231705849268),
+                                    ("month", -3.044522437723423),
+                                    ("year (integer)", -2.639057329615259),
+                                    ("this|last the <cycle>", -2.639057329615259),
+                                    ("day of <named-month>", -3.044522437723423)],
+                               n = 13},
                    koData =
-                     ClassData{prior = -0.6931471805599453, unseen = -3.713572066704308,
+                     ClassData{prior = -0.7801585575495751,
+                               unseen = -3.6635616461296463,
                                likelihoods =
                                  HashMap.fromList
-                                   [("September", -2.995732273553991),
-                                    ("October", -2.995732273553991),
-                                    ("intersect", -2.0794415416798357),
-                                    ("Saturday", -2.995732273553991),
-                                    ("<time> for <duration>", -2.5902671654458267),
-                                    ("day", -2.995732273553991),
-                                    ("month (ordinal)", -2.995732273553991),
+                                   [("September", -2.9444389791664407),
+                                    ("October", -2.9444389791664407),
+                                    ("intersect", -2.0281482472922856),
+                                    ("<time> for <duration>", -2.538973871058276),
+                                    ("month (ordinal)", -2.9444389791664407),
                                     ("intersect by \",\", \"of\", \"from\", \"'s\"",
-                                     -2.5902671654458267),
-                                    ("month", -1.2039728043259361)],
-                               n = 12}}),
+                                     -2.538973871058276),
+                                    ("month", -1.1526795099383855)],
+                               n = 11}}),
        ("<hour-of-day> and integer minutes",
         Classifier{okData =
                      ClassData{prior = -0.15415067982725836,
@@ -459,166 +452,163 @@ classifiers
                                likelihoods = HashMap.fromList [("", 0.0)], n = 39}}),
        ("intersect",
         Classifier{okData =
-                     ClassData{prior = -0.569352963213281, unseen = -5.529429087511423,
+                     ClassData{prior = -0.5458224658030868,
+                               unseen = -5.5134287461649825,
                                likelihoods =
                                  HashMap.fromList
-                                   [("Tuesdayon <date>", -4.832305758571839),
-                                    ("in <named-month>year", -4.832305758571839),
+                                   [("Tuesdayon <date>", -4.816241156068032),
+                                    ("in <named-month>year", -4.816241156068032),
                                     ("<hour-of-day> till thirdafter part of days",
-                                     -4.426840650463674),
-                                    ("dayhour", -3.9160150266976834),
-                                    ("daymonth", -4.832305758571839),
-                                    ("in <named-month>on <date>", -4.832305758571839),
-                                    ("monthyear", -3.3282283617955644),
-                                    ("Mondayon <date>", -4.832305758571839),
-                                    ("Christmasyear", -4.832305758571839),
+                                     -4.410776047959867),
+                                    ("dayhour", -3.899950424193877),
+                                    ("daymonth", -4.816241156068032),
+                                    ("in <named-month>on <date>", -4.816241156068032),
+                                    ("monthyear", -3.312163759291758),
+                                    ("Mondayon <date>", -4.816241156068032),
+                                    ("Christmasyear", -4.816241156068032),
                                     ("Monday<day-of-month> (ordinal or number) <named-month>",
-                                     -4.832305758571839),
-                                    ("month (integer)year (integer)", -4.426840650463674),
+                                     -4.816241156068032),
+                                    ("month (integer)year (integer)", -4.410776047959867),
                                     ("\1593\1610\1583 \1575\1604\1605\1610\1604\1575\1583year",
-                                     -4.832305758571839),
+                                     -4.816241156068032),
                                     ("<day-of-week> the last of <time><cycle> this|last|next",
-                                     -4.832305758571839),
-                                    ("at <time-of-day>before part of days", -4.139158578011894),
-                                    ("hh:mmbefore part of days", -4.832305758571839),
+                                     -4.816241156068032),
+                                    ("at <time-of-day>before part of days", -4.123093975508087),
+                                    ("hh:mmbefore part of days", -4.816241156068032),
                                     ("intersect by \",\", \"of\", \"from\", \"'s\"year",
-                                     -4.832305758571839),
-                                    ("intersect<time> <part-of-day>", -4.426840650463674),
-                                    ("month (ordinal)year (integer)", -4.832305758571839),
+                                     -4.816241156068032),
+                                    ("intersect<time> <part-of-day>", -4.410776047959867),
+                                    ("month (ordinal)year (integer)", -4.816241156068032),
                                     ("\1593\1610\1583 \1575\1604\1601\1589\1581year",
-                                     -4.832305758571839),
-                                    ("dd/mm<time> <part-of-day>", -4.832305758571839),
-                                    ("Thursday<time> timezone", -4.426840650463674),
+                                     -4.816241156068032),
+                                    ("dd/mm<time> <part-of-day>", -4.816241156068032),
+                                    ("Thursday<time> timezone", -4.410776047959867),
                                     ("<hour-of-day> till quarterthis <part-of-day>",
-                                     -4.426840650463674),
-                                    ("dayday", -3.0405462893437836),
+                                     -4.410776047959867),
+                                    ("dayday", -3.024481686839977),
                                     ("absorption of , after named day<day-of-month> (ordinal or number) <named-month>",
-                                     -4.832305758571839),
-                                    ("hourhour", -3.733693469903729),
-                                    ("month (integer)year", -4.832305758571839),
+                                     -4.816241156068032),
+                                    ("hourhour", -3.717628867399922),
+                                    ("month (integer)year", -4.816241156068032),
                                     ("\1593\1610\1583 \1575\1604\1601\1591\1585year",
-                                     -4.832305758571839),
+                                     -4.816241156068032),
                                     ("Thursday<day-of-month> (ordinal or number) <named-month>",
-                                     -4.832305758571839),
-                                    ("dayyear", -2.960503581670247),
-                                    ("Thursday<time> <part-of-day>", -4.832305758571839),
-                                    ("<cycle> last of <time>year (integer)", -4.426840650463674),
-                                    ("last <cycle> of <time>year (integer)", -4.832305758571839),
-                                    ("<hour-of-day> quarterafter part of days", -4.832305758571839),
-                                    ("minutehour", -2.529720665577793),
+                                     -4.816241156068032),
+                                    ("dayyear", -2.9444389791664407),
+                                    ("Thursday<time> <part-of-day>", -4.816241156068032),
+                                    ("<cycle> last of <time>year (integer)", -4.410776047959867),
+                                    ("last <cycle> of <time>year (integer)", -4.816241156068032),
+                                    ("<hour-of-day> quarterafter part of days", -4.816241156068032),
+                                    ("minutehour", -2.513656063073986),
                                     ("Thursdayfrom <datetime> - <datetime> (interval)",
-                                     -4.832305758571839),
+                                     -4.816241156068032),
                                     ("\1585\1571\1587 \1575\1604\1587\1606\1577 \1575\1604\1607\1580\1585\1610\1577year",
-                                     -4.832305758571839),
-                                    ("Monday<cycle> this|last|next", -4.832305758571839),
+                                     -4.816241156068032),
+                                    ("Monday<cycle> this|last|next", -4.816241156068032),
                                     ("<day-of-month> (ordinal or number) of <named-month>year",
-                                     -4.832305758571839),
-                                    ("<cycle> <ordinal> day? of <time>year", -4.832305758571839),
+                                     -4.816241156068032),
+                                    ("<cycle> <ordinal> day? of <time>year", -4.816241156068032),
                                     ("\1593\1610\1583 \1575\1604\1571\1590\1581\1609year",
-                                     -4.832305758571839),
-                                    ("on a <named-day>dd/mm", -4.832305758571839),
-                                    ("on a <named-day>on <date>", -4.832305758571839),
+                                     -4.816241156068032),
+                                    ("on a <named-day>dd/mm", -4.816241156068032),
+                                    ("on a <named-day>on <date>", -4.816241156068032),
                                     ("on a <named-day><day-of-month> (ordinal or number) <named-month>",
-                                     -4.832305758571839),
-                                    ("Tuesday<cycle> this|last|next", -4.832305758571839),
-                                    ("dayminute", -3.5795427900764705),
-                                    ("dd/mmintersect", -4.832305758571839),
-                                    ("in <named-month><cycle> this|last|next", -4.832305758571839),
+                                     -4.816241156068032),
+                                    ("Tuesday<cycle> this|last|next", -4.816241156068032),
+                                    ("dayminute", -3.563478187572664),
+                                    ("dd/mmintersect", -4.816241156068032),
+                                    ("in <named-month><cycle> this|last|next", -4.816241156068032),
                                     ("<hour-of-day> and integer minutesafter part of days",
-                                     -4.426840650463674),
-                                    ("Saturdaydd/mm", -4.832305758571839),
-                                    ("\1585\1605\1590\1575\1606year", -4.832305758571839),
-                                    ("the <cycle> the <ordinal> of <time>year", -4.832305758571839),
-                                    ("at <time-of-day>after part of days", -3.733693469903729),
-                                    ("<ordinal> <cycle> of <time>year", -4.832305758571839),
-                                    ("Sunday<cycle> this|last|next", -4.832305758571839),
+                                     -4.410776047959867),
+                                    ("Saturdaydd/mm", -4.816241156068032),
+                                    ("\1585\1605\1590\1575\1606year", -4.816241156068032),
+                                    ("the <cycle> the <ordinal> of <time>year", -4.816241156068032),
+                                    ("at <time-of-day>after part of days", -3.717628867399922),
+                                    ("<ordinal> <cycle> of <time>year", -4.816241156068032),
+                                    ("Sunday<cycle> this|last|next", -4.816241156068032),
                                     ("Tuesday<day-of-month> (ordinal or number) of <named-month>",
-                                     -4.426840650463674),
-                                    ("Septemberon <date>", -4.832305758571839),
+                                     -4.410776047959867),
+                                    ("Septemberon <date>", -4.816241156068032),
                                     ("from <datetime> - <datetime> (interval)after part of days",
-                                     -4.832305758571839),
-                                    ("intersectintersect", -4.426840650463674),
-                                    ("dayweek", -4.139158578011894),
-                                    ("weekyear", -3.9160150266976834),
+                                     -4.816241156068032),
+                                    ("intersectintersect", -4.410776047959867),
+                                    ("dayweek", -4.123093975508087),
+                                    ("weekyear", -3.899950424193877),
                                     ("<datetime> - <datetime> (interval)after part of days",
-                                     -4.832305758571839),
+                                     -4.816241156068032),
                                     ("Friday<day-of-month> (ordinal or number) <named-month>",
-                                     -4.832305758571839),
+                                     -4.816241156068032),
                                     ("<hour-of-day> till quarterbefore part of days",
-                                     -4.426840650463674),
+                                     -4.410776047959867),
                                     ("<time-of-day> - <time-of-day> (interval)after part of days",
-                                     -4.832305758571839),
-                                    ("at <time-of-day>this <part-of-day>", -4.832305758571839),
+                                     -4.816241156068032),
+                                    ("at <time-of-day>this <part-of-day>", -4.816241156068032),
                                     ("<hour-of-day> till thirdbefore part of days",
-                                     -4.426840650463674)],
+                                     -4.410776047959867)],
                                n = 73},
                    koData =
-                     ClassData{prior = -0.8344607136265229, unseen = -5.384495062789089,
+                     ClassData{prior = -0.8659899933993561, unseen = -5.337538079701318,
                                likelihoods =
                                  HashMap.fromList
-                                   [("Tuesdayon <date>", -4.686750172980514),
-                                    ("dayhour", -3.18267277620424),
-                                    ("daymonth", -3.5881378843124043),
-                                    ("monthday", -4.686750172980514),
-                                    ("monthyear", -2.814947996078923),
-                                    ("hh:mmafter part of days", -4.686750172980514),
-                                    ("houryear", -4.28128506487235),
-                                    ("intersectat <time-of-day>", -3.770459441106359),
-                                    ("intersect<time> <part-of-day>", -4.28128506487235),
-                                    ("Octoberon <date>", -4.686750172980514),
-                                    ("until <time-of-day>after part of days", -4.686750172980514),
-                                    ("this|last <cycle>on <date>", -4.686750172980514),
-                                    ("Tuesdayafter <time-of-day>", -4.686750172980514),
-                                    ("Wednesdayon <date>", -4.28128506487235),
-                                    ("dd/mm<time> <part-of-day>", -4.686750172980514),
-                                    ("yearyear", -4.28128506487235),
+                                   [("Tuesdayon <date>", -4.639571612705423),
+                                    ("dayhour", -3.1354942159291497),
+                                    ("daymonth", -3.5409593240373143),
+                                    ("monthday", -4.639571612705423),
+                                    ("monthyear", -2.7677694358038325),
+                                    ("hh:mmafter part of days", -4.639571612705423),
+                                    ("houryear", -4.639571612705423),
+                                    ("intersectat <time-of-day>", -3.7232808808312687),
+                                    ("intersect<time> <part-of-day>", -4.23410650459726),
+                                    ("Octoberon <date>", -4.639571612705423),
+                                    ("until <time-of-day>after part of days", -4.639571612705423),
+                                    ("Tuesdayafter <time-of-day>", -4.639571612705423),
+                                    ("Wednesdayon <date>", -4.23410650459726),
+                                    ("dd/mm<time> <part-of-day>", -4.639571612705423),
+                                    ("yearyear", -4.23410650459726),
                                     ("<hour-of-day> till quarterthis <part-of-day>",
-                                     -4.686750172980514),
-                                    ("dayday", -3.993602992420569),
-                                    ("dd/mmat <time-of-day>", -4.28128506487235),
-                                    ("hourhour", -4.28128506487235),
-                                    ("dayyear", -3.4339872044851463),
-                                    ("Thursdayat <time-of-day>", -4.28128506487235),
-                                    ("Februaryyear", -4.686750172980514),
-                                    ("minutemonth", -4.686750172980514),
-                                    ("minutehour", -4.28128506487235),
-                                    ("for <duration> from <time>on <date>", -4.686750172980514),
+                                     -4.639571612705423),
+                                    ("dayday", -3.9464244321454784),
+                                    ("dd/mmat <time-of-day>", -4.23410650459726),
+                                    ("hourhour", -4.23410650459726),
+                                    ("dayyear", -3.386808644210056),
+                                    ("Thursdayat <time-of-day>", -4.23410650459726),
+                                    ("Februaryyear", -4.639571612705423),
+                                    ("minutemonth", -4.639571612705423),
+                                    ("minutehour", -4.23410650459726),
                                     ("<day-of-month> (ordinal or number) of <named-month>year",
-                                     -4.28128506487235),
-                                    ("March<cycle> this|last|next", -4.686750172980514),
-                                    ("nth <time> of <time>year", -4.686750172980514),
+                                     -4.23410650459726),
+                                    ("March<cycle> this|last|next", -4.639571612705423),
+                                    ("nth <time> of <time>year", -4.639571612705423),
                                     ("Wednesday<day-of-month> (ordinal or number) of <named-month>",
-                                     -4.686750172980514),
-                                    ("secondyear", -4.28128506487235),
+                                     -4.639571612705423),
+                                    ("secondyear", -4.639571612705423),
                                     ("Wednesdayintersect by \",\", \"of\", \"from\", \"'s\"",
-                                     -4.686750172980514),
-                                    ("on <date>year (integer)", -4.686750172980514),
-                                    ("<time> for <duration>year", -3.5881378843124043),
+                                     -4.639571612705423),
+                                    ("on <date>year (integer)", -4.639571612705423),
+                                    ("<time> for <duration>year", -3.5409593240373143),
                                     ("<duration> after|before|from <time>on <date>",
-                                     -4.686750172980514),
-                                    ("dayminute", -3.18267277620424),
-                                    ("Julyuntil <time-of-day>", -4.686750172980514),
-                                    ("intersecton <date>", -4.686750172980514),
-                                    ("at <time-of-day>after part of days", -4.686750172980514),
-                                    ("Octoberyear", -4.686750172980514),
-                                    ("in|within|after <duration>year", -4.28128506487235),
+                                     -4.639571612705423),
+                                    ("dayminute", -3.1354942159291497),
+                                    ("Julyuntil <time-of-day>", -4.639571612705423),
+                                    ("intersecton <date>", -4.639571612705423),
+                                    ("at <time-of-day>after part of days", -4.639571612705423),
+                                    ("Octoberyear", -4.639571612705423),
+                                    ("in|within|after <duration>year", -4.23410650459726),
                                     ("Tuesday<day-of-month> (ordinal or number) of <named-month>",
-                                     -4.686750172980514),
-                                    ("on a <named-day>intersect", -4.28128506487235),
-                                    ("Saturdayintersect", -4.28128506487235),
-                                    ("at <time-of-day>year", -4.686750172980514),
-                                    ("on <date>year", -4.28128506487235),
-                                    ("on <date>on <date>", -4.686750172980514),
-                                    ("weekday", -4.686750172980514),
-                                    ("Tuesdaynth <time> of <time>", -4.686750172980514),
-                                    ("weekyear", -4.686750172980514),
-                                    ("Tuesdayintersect", -4.686750172980514),
-                                    ("after <time-of-day>year", -4.686750172980514),
-                                    ("in <number> (implicit minutes)February", -4.686750172980514),
-                                    ("last <cycle> of <time>year", -4.686750172980514),
+                                     -4.639571612705423),
+                                    ("on a <named-day>intersect", -4.23410650459726),
+                                    ("Saturdayintersect", -4.23410650459726),
+                                    ("on <date>year", -4.23410650459726),
+                                    ("on <date>on <date>", -4.639571612705423),
+                                    ("Tuesdaynth <time> of <time>", -4.639571612705423),
+                                    ("weekyear", -4.639571612705423),
+                                    ("Tuesdayintersect", -4.639571612705423),
+                                    ("after <time-of-day>year", -4.639571612705423),
+                                    ("in <number> (implicit minutes)February", -4.639571612705423),
+                                    ("last <cycle> of <time>year", -4.639571612705423),
                                     ("<day-of-month> (ordinal or number) of <named-month>on <date>",
-                                     -4.686750172980514)],
-                               n = 56}}),
+                                     -4.639571612705423)],
+                               n = 53}}),
        ("\1585\1605\1590\1575\1606",
         Classifier{okData =
                      ClassData{prior = 0.0, unseen = -1.0986122886681098,
@@ -706,13 +696,11 @@ classifiers
                                likelihoods = HashMap.fromList [], n = 0}}),
        ("Saturday",
         Classifier{okData =
-                     ClassData{prior = -0.2876820724517809,
-                               unseen = -1.6094379124341003,
+                     ClassData{prior = 0.0, unseen = -1.6094379124341003,
                                likelihoods = HashMap.fromList [("", 0.0)], n = 3},
                    koData =
-                     ClassData{prior = -1.3862943611198906,
-                               unseen = -1.0986122886681098,
-                               likelihoods = HashMap.fromList [("", 0.0)], n = 1}}),
+                     ClassData{prior = -infinity, unseen = -0.6931471805599453,
+                               likelihoods = HashMap.fromList [], n = 0}}),
        ("integer 21..99",
         Classifier{okData =
                      ClassData{prior = 0.0, unseen = -1.6094379124341003,
@@ -796,12 +784,11 @@ classifiers
                                likelihoods = HashMap.fromList [], n = 0}}),
        ("yesterday",
         Classifier{okData =
-                     ClassData{prior = -0.1823215567939546,
-                               unseen = -1.9459101490553135,
+                     ClassData{prior = 0.0, unseen = -1.9459101490553135,
                                likelihoods = HashMap.fromList [("", 0.0)], n = 5},
                    koData =
-                     ClassData{prior = -1.791759469228055, unseen = -1.0986122886681098,
-                               likelihoods = HashMap.fromList [("", 0.0)], n = 1}}),
+                     ClassData{prior = -infinity, unseen = -0.6931471805599453,
+                               likelihoods = HashMap.fromList [], n = 0}}),
        ("hh:mm:ss",
         Classifier{okData =
                      ClassData{prior = 0.0, unseen = -1.0986122886681098,
@@ -976,39 +963,37 @@ classifiers
                                likelihoods = HashMap.fromList [], n = 0}}),
        ("<day-of-month> (ordinal or number) of <named-month>",
         Classifier{okData =
-                     ClassData{prior = -0.6131044728864089,
-                               unseen = -3.7376696182833684,
+                     ClassData{prior = -0.570544858467613, unseen = -3.713572066704308,
                                likelihoods =
                                  HashMap.fromList
                                    [("ordinals (thirtieth..nineteenth)February",
-                                     -2.6149597780361984),
-                                    ("ordinals (first..tenth)October", -2.6149597780361984),
-                                    ("ordinals (first..tenth)April", -2.6149597780361984),
-                                    ("ordinals (first..tenth)February", -3.0204248861443626),
-                                    ("ordinals (first..tenth)month (integer)", -2.6149597780361984),
-                                    ("ordinals (first..tenth)March", -2.6149597780361984),
-                                    ("month", -1.074514737089049),
+                                     -2.5902671654458267),
+                                    ("ordinals (first..tenth)October", -2.5902671654458267),
+                                    ("ordinals (first..tenth)April", -2.5902671654458267),
+                                    ("ordinals (first..tenth)February", -2.995732273553991),
+                                    ("ordinals (first..tenth)month (integer)", -2.5902671654458267),
+                                    ("ordinals (first..tenth)March", -2.5902671654458267),
+                                    ("month", -1.0498221244986778),
                                     ("ordinals (first..tenth)in <named-month>",
-                                     -2.6149597780361984)],
+                                     -2.5902671654458267)],
                                n = 13},
                    koData =
-                     ClassData{prior = -0.7801585575495751,
-                               unseen = -3.6375861597263857,
+                     ClassData{prior = -0.832909122935104, unseen = -3.5553480614894135,
                                likelihoods =
                                  HashMap.fromList
-                                   [("integer 2in <named-month>", -2.917770732084279),
-                                    ("integer 10February", -2.512305623976115),
-                                    ("integer (numeric)month (ordinal)", -2.917770732084279),
-                                    ("ordinals (first..tenth)month (integer)", -2.917770732084279),
-                                    ("integer (20..90)in <named-month>", -2.917770732084279),
+                                   [("integer 2in <named-month>", -2.833213344056216),
+                                    ("integer 10February", -2.4277482359480516),
+                                    ("integer (numeric)month (ordinal)", -2.833213344056216),
+                                    ("ordinals (first..tenth)month (integer)", -2.833213344056216),
+                                    ("integer (20..90)in <named-month>", -2.833213344056216),
                                     ("ordinals (composite, e.g., eighty-seven)in <named-month>",
-                                     -2.917770732084279),
+                                     -2.833213344056216),
                                     ("ordinals (twenty, thirty..ninety)in <named-month>",
-                                     -2.917770732084279),
-                                    ("month", -1.126011262856224),
-                                    ("ordinals (first..tenth)in <named-month>", -2.512305623976115),
-                                    ("ordinals (first..tenth)August", -2.917770732084279)],
-                               n = 11}}),
+                                     -2.833213344056216),
+                                    ("month", -1.128465251817791),
+                                    ("ordinals (first..tenth)in <named-month>",
+                                     -2.4277482359480516)],
+                               n = 10}}),
        ("this <part-of-day>",
         Classifier{okData =
                      ClassData{prior = -1.0986122886681098,
@@ -1045,13 +1030,6 @@ classifiers
                    koData =
                      ClassData{prior = -infinity, unseen = -1.9459101490553135,
                                likelihoods = HashMap.fromList [], n = 0}}),
-       ("powers of tens",
-        Classifier{okData =
-                     ClassData{prior = -infinity, unseen = -0.6931471805599453,
-                               likelihoods = HashMap.fromList [], n = 0},
-                   koData =
-                     ClassData{prior = 0.0, unseen = -2.0794415416798357,
-                               likelihoods = HashMap.fromList [("", 0.0)], n = 6}}),
        ("Friday",
         Classifier{okData =
                      ClassData{prior = 0.0, unseen = -1.6094379124341003,
@@ -1199,19 +1177,15 @@ classifiers
                                likelihoods = HashMap.fromList [], n = 0}}),
        ("year",
         Classifier{okData =
-                     ClassData{prior = -0.9932517730102834,
-                               unseen = -2.5649493574615367,
-                               likelihoods =
-                                 HashMap.fromList [("integer (numeric)", -8.701137698962981e-2)],
+                     ClassData{prior = -0.7419373447293773,
+                               unseen = -2.4849066497880004,
+                               likelihoods = HashMap.fromList [("integer (numeric)", 0.0)],
                                n = 10},
                    koData =
-                     ClassData{prior = -0.46262352194811296,
-                               unseen = -2.995732273553991,
-                               likelihoods =
-                                 HashMap.fromList
-                                   [("integer (numeric)", -0.4595323293784402),
-                                    ("powers of tens", -0.9985288301111273)],
-                               n = 17}}),
+                     ClassData{prior = -0.6466271649250525,
+                               unseen = -2.5649493574615367,
+                               likelihoods = HashMap.fromList [("integer (numeric)", 0.0)],
+                               n = 11}}),
        ("last <day-of-week> of <time>",
         Classifier{okData =
                      ClassData{prior = 0.0, unseen = -2.0794415416798357,
@@ -1256,12 +1230,13 @@ classifiers
                                likelihoods = HashMap.fromList [], n = 0}}),
        ("integer 10",
         Classifier{okData =
-                     ClassData{prior = -0.8472978603872037,
+                     ClassData{prior = -0.6931471805599453,
                                unseen = -2.3978952727983707,
                                likelihoods = HashMap.fromList [("", 0.0)], n = 9},
                    koData =
-                     ClassData{prior = -0.5596157879354228, unseen = -2.639057329615259,
-                               likelihoods = HashMap.fromList [("", 0.0)], n = 12}}),
+                     ClassData{prior = -0.6931471805599453,
+                               unseen = -2.3978952727983707,
+                               likelihoods = HashMap.fromList [("", 0.0)], n = 9}}),
        ("from <day-of-month> (ordinal or number) to <day-of-month> (ordinal or number) <named-month> (interval)",
         Classifier{okData =
                      ClassData{prior = 0.0, unseen = -2.0794415416798357,
@@ -1297,28 +1272,26 @@ classifiers
                                likelihoods = HashMap.fromList [("", 0.0)], n = 1}}),
        ("<hour-of-day> and integer",
         Classifier{okData =
-                     ClassData{prior = -1.3217558399823195, unseen = -2.890371757896165,
+                     ClassData{prior = -1.252762968495368, unseen = -2.833213344056216,
                                likelihoods =
                                  HashMap.fromList
-                                   [("at <time-of-day>integer (13..19)", -2.1400661634962708),
-                                    ("at <time-of-day>integer 21..99", -1.7346010553881064),
-                                    ("hour", -1.2237754316221157),
-                                    ("at <time-of-day>integer (numeric)", -2.1400661634962708)],
+                                   [("at <time-of-day>integer (13..19)", -2.0794415416798357),
+                                    ("at <time-of-day>integer 21..99", -1.6739764335716716),
+                                    ("hour", -1.1631508098056809),
+                                    ("at <time-of-day>integer (numeric)", -2.0794415416798357)],
                                n = 4},
                    koData =
-                     ClassData{prior = -0.3101549283038396,
-                               unseen = -3.4657359027997265,
+                     ClassData{prior = -0.3364722366212129, unseen = -3.367295829986474,
                                likelihoods =
                                  HashMap.fromList
-                                   [("at <time-of-day>integer 5", -2.3353749158170367),
-                                    ("at <time-of-day>integer (13..19)", -2.3353749158170367),
-                                    ("at <time-of-day>integer 3", -2.740840023925201),
-                                    ("at <time-of-day>integer 4", -2.740840023925201),
-                                    ("at <time-of-day>integer (20..90)", -2.740840023925201),
-                                    ("at <time-of-day>integer 8", -2.3353749158170367),
-                                    ("hour", -0.9490805546971459),
-                                    ("at <time-of-day>integer (numeric)", -2.3353749158170367)],
-                               n = 11}}),
+                                   [("at <time-of-day>integer 5", -2.2335922215070942),
+                                    ("at <time-of-day>integer (13..19)", -2.2335922215070942),
+                                    ("at <time-of-day>integer 3", -2.639057329615259),
+                                    ("at <time-of-day>integer (20..90)", -2.639057329615259),
+                                    ("at <time-of-day>integer 8", -2.2335922215070942),
+                                    ("hour", -0.9343092373768334),
+                                    ("at <time-of-day>integer (numeric)", -2.2335922215070942)],
+                               n = 10}}),
        ("month (ordinal)",
         Classifier{okData =
                      ClassData{prior = 0.0, unseen = -1.3862943611198906,
@@ -1327,19 +1300,13 @@ classifiers
                    koData =
                      ClassData{prior = -infinity, unseen = -0.6931471805599453,
                                likelihoods = HashMap.fromList [], n = 0}}),
-       ("integer 4",
-        Classifier{okData =
-                     ClassData{prior = -infinity, unseen = -0.6931471805599453,
-                               likelihoods = HashMap.fromList [], n = 0},
-                   koData =
-                     ClassData{prior = 0.0, unseen = -2.1972245773362196,
-                               likelihoods = HashMap.fromList [("", 0.0)], n = 7}}),
        ("second (grain) ",
         Classifier{okData =
-                     ClassData{prior = -infinity, unseen = -0.6931471805599453,
-                               likelihoods = HashMap.fromList [], n = 0},
+                     ClassData{prior = -1.6094379124341003,
+                               unseen = -1.0986122886681098,
+                               likelihoods = HashMap.fromList [("", 0.0)], n = 1},
                    koData =
-                     ClassData{prior = 0.0, unseen = -1.791759469228055,
+                     ClassData{prior = -0.2231435513142097, unseen = -1.791759469228055,
                                likelihoods = HashMap.fromList [("", 0.0)], n = 4}}),
        ("\1593\1610\1583 \1575\1604\1601\1589\1581",
         Classifier{okData =
@@ -1459,12 +1426,11 @@ classifiers
                                n = 17}}),
        ("integer 3",
         Classifier{okData =
-                     ClassData{prior = -1.0560526742493137,
-                               unseen = -2.3025850929940455,
+                     ClassData{prior = 0.0, unseen = -2.3025850929940455,
                                likelihoods = HashMap.fromList [("", 0.0)], n = 8},
                    koData =
-                     ClassData{prior = -0.4274440148269396, unseen = -2.833213344056216,
-                               likelihoods = HashMap.fromList [("", 0.0)], n = 15}}),
+                     ClassData{prior = -infinity, unseen = -0.6931471805599453,
+                               likelihoods = HashMap.fromList [], n = 0}}),
        ("last <time>",
         Classifier{okData =
                      ClassData{prior = -infinity, unseen = -1.791759469228055,
@@ -1681,19 +1647,21 @@ classifiers
                                likelihoods = HashMap.fromList [("", 0.0)], n = 2}}),
        ("this|last the <cycle>",
         Classifier{okData =
-                     ClassData{prior = 0.0, unseen = -2.9444389791664407,
+                     ClassData{prior = 0.0, unseen = -3.1354942159291497,
                                likelihoods =
                                  HashMap.fromList
-                                   [("week", -1.791759469228055),
-                                    ("month (grain)", -2.1972245773362196),
-                                    ("year (grain)", -2.1972245773362196),
-                                    ("week (grain)", -1.791759469228055),
-                                    ("day", -2.1972245773362196), ("year", -2.1972245773362196),
-                                    ("month", -2.1972245773362196),
-                                    ("day (grain)", -2.1972245773362196)],
-                               n = 5},
+                                   [("week", -1.9924301646902063),
+                                    ("month (grain)", -2.3978952727983707),
+                                    ("year (grain)", -2.3978952727983707),
+                                    ("second", -2.3978952727983707),
+                                    ("week (grain)", -1.9924301646902063),
+                                    ("day", -2.3978952727983707), ("year", -2.3978952727983707),
+                                    ("second (grain) ", -2.3978952727983707),
+                                    ("month", -2.3978952727983707),
+                                    ("day (grain)", -2.3978952727983707)],
+                               n = 6},
                    koData =
-                     ClassData{prior = -infinity, unseen = -2.1972245773362196,
+                     ClassData{prior = -infinity, unseen = -2.3978952727983707,
                                likelihoods = HashMap.fromList [], n = 0}}),
        ("in <named-month>",
         Classifier{okData =
@@ -1759,28 +1727,27 @@ classifiers
                                n = 3}}),
        ("last <cycle> of <time>",
         Classifier{okData =
-                     ClassData{prior = -0.5596157879354228,
-                               unseen = -2.9444389791664407,
+                     ClassData{prior = -0.40546510810816444,
+                               unseen = -2.833213344056216,
                                likelihoods =
                                  HashMap.fromList
-                                   [("daymonth", -1.791759469228055),
+                                   [("daymonth", -1.6739764335716716),
                                     ("week (grain)intersect by \",\", \"of\", \"from\", \"'s\"",
-                                     -2.1972245773362196),
-                                    ("day (grain)intersect", -2.1972245773362196),
-                                    ("weekmonth", -1.791759469228055),
-                                    ("week (grain)September", -2.1972245773362196),
-                                    ("day (grain)month (integer)", -2.1972245773362196)],
+                                     -2.0794415416798357),
+                                    ("day (grain)intersect", -2.0794415416798357),
+                                    ("weekmonth", -1.6739764335716716),
+                                    ("week (grain)September", -2.0794415416798357),
+                                    ("day (grain)month (integer)", -2.0794415416798357)],
                                n = 4},
                    koData =
-                     ClassData{prior = -0.8472978603872037, unseen = -2.833213344056216,
+                     ClassData{prior = -1.0986122886681098,
+                               unseen = -2.5649493574615367,
                                likelihoods =
                                  HashMap.fromList
-                                   [("week (grain)<time> for <duration>", -2.0794415416798357),
-                                    ("weekmonth", -1.6739764335716716),
-                                    ("weekday", -2.0794415416798357),
-                                    ("week (grain)intersect", -2.0794415416798357),
-                                    ("week (grain)Saturday", -2.0794415416798357)],
-                               n = 3}}),
+                                   [("week (grain)<time> for <duration>", -1.791759469228055),
+                                    ("weekmonth", -1.3862943611198906),
+                                    ("week (grain)intersect", -1.791759469228055)],
+                               n = 2}}),
        ("ordinals (composite, e.g., eighty-seven)",
         Classifier{okData =
                      ClassData{prior = 0.0, unseen = -1.3862943611198906,
@@ -1832,19 +1799,6 @@ classifiers
                    koData =
                      ClassData{prior = -infinity, unseen = -0.6931471805599453,
                                likelihoods = HashMap.fromList [], n = 0}}),
-       ("for <duration> from <time>",
-        Classifier{okData =
-                     ClassData{prior = -infinity, unseen = -1.3862943611198906,
-                               likelihoods = HashMap.fromList [], n = 0},
-                   koData =
-                     ClassData{prior = 0.0, unseen = -2.0794415416798357,
-                               likelihoods =
-                                 HashMap.fromList
-                                   [("single <unit-of-duration>intersect", -1.252762968495368),
-                                    ("single <unit-of-duration>in <named-month>",
-                                     -1.252762968495368),
-                                    ("secondmonth", -0.8472978603872037)],
-                               n = 2}}),
        ("<day-of-week> the last of <time>",
         Classifier{okData =
                      ClassData{prior = 0.0, unseen = -2.3978952727983707,
@@ -1888,15 +1842,6 @@ classifiers
                    koData =
                      ClassData{prior = -infinity, unseen = -1.6094379124341003,
                                likelihoods = HashMap.fromList [], n = 0}}),
-       ("compose by multiplication",
-        Classifier{okData =
-                     ClassData{prior = -infinity, unseen = -0.6931471805599453,
-                               likelihoods = HashMap.fromList [], n = 0},
-                   koData =
-                     ClassData{prior = 0.0, unseen = -1.0986122886681098,
-                               likelihoods =
-                                 HashMap.fromList [("integer (numeric)powers of tens", 0.0)],
-                               n = 1}}),
        ("<month> dd-dd (interval)",
         Classifier{okData =
                      ClassData{prior = 0.0, unseen = -2.3025850929940455,
@@ -1953,7 +1898,7 @@ classifiers
                                n = 14}}),
        ("single <unit-of-duration>",
         Classifier{okData =
-                     ClassData{prior = -3.58351893845611, unseen = -3.1354942159291497,
+                     ClassData{prior = -3.590439381300684, unseen = -3.1354942159291497,
                                likelihoods =
                                  HashMap.fromList
                                    [("week", -1.9924301646902063),
@@ -1962,24 +1907,23 @@ classifiers
                                     ("day (grain)", -1.9924301646902063)],
                                n = 4},
                    koData =
-                     ClassData{prior = -2.8170876966696335e-2,
-                               unseen = -5.68697535633982,
+                     ClassData{prior = -2.797385204240618e-2, unseen = -5.6937321388027,
                                likelihoods =
                                  HashMap.fromList
-                                   [("week", -2.639057329615259),
-                                    ("month (grain)", -2.249592562853535),
-                                    ("hour (grain)", -1.9947003132247452),
-                                    ("year (grain)", -2.793208009442517),
-                                    ("second", -4.074141854904581),
-                                    ("week (grain)", -2.639057329615259),
-                                    ("day", -2.592537313980366),
-                                    ("minute (grain)", -3.380994674344636),
-                                    ("year", -2.793208009442517),
-                                    ("second (grain) ", -4.074141854904581),
-                                    ("hour", -1.9947003132247452), ("month", -2.249592562853535),
-                                    ("minute", -3.380994674344636),
-                                    ("day (grain)", -2.592537313980366)],
-                               n = 140}}),
+                                   [("week", -2.6458370166006375),
+                                    ("month (grain)", -2.2563722498389143),
+                                    ("hour (grain)", -2.001480000210124),
+                                    ("year (grain)", -2.7999876964278956),
+                                    ("second", -3.898599985096005),
+                                    ("week (grain)", -2.6458370166006375),
+                                    ("day", -2.5993170009657445),
+                                    ("minute (grain)", -3.3877743613300146),
+                                    ("year", -2.7999876964278956),
+                                    ("second (grain) ", -3.898599985096005),
+                                    ("hour", -2.001480000210124), ("month", -2.2563722498389143),
+                                    ("minute", -3.3877743613300146),
+                                    ("day (grain)", -2.5993170009657445)],
+                               n = 141}}),
        ("dd-dd <month> (interval)",
         Classifier{okData =
                      ClassData{prior = 0.0, unseen = -2.3025850929940455,
@@ -2005,10 +1949,8 @@ classifiers
                                likelihoods = HashMap.fromList [], n = 0}}),
        ("August",
         Classifier{okData =
-                     ClassData{prior = -2.0794415416798357,
-                               unseen = -1.3862943611198906,
+                     ClassData{prior = 0.0, unseen = -1.3862943611198906,
                                likelihoods = HashMap.fromList [("", 0.0)], n = 2},
                    koData =
-                     ClassData{prior = -0.13353139262452263,
-                               unseen = -2.772588722239781,
-                               likelihoods = HashMap.fromList [("", 0.0)], n = 14}})]
\ No newline at end of file
+                     ClassData{prior = -infinity, unseen = -0.6931471805599453,
+                               likelihoods = HashMap.fromList [], n = 0}})]
\ No newline at end of file
diff --git a/Duckling/Ranking/Classifiers/AR_XX.hs b/Duckling/Ranking/Classifiers/AR_XX.hs
index a289558c..7f8a7b52 100644
--- a/Duckling/Ranking/Classifiers/AR_XX.hs
+++ b/Duckling/Ranking/Classifiers/AR_XX.hs
@@ -65,13 +65,6 @@ classifiers
                    koData =
                      ClassData{prior = -infinity, unseen = -1.3862943611198906,
                                likelihoods = HashMap.fromList [], n = 0}}),
-       ("noon|midnight|EOD|end of day",
-        Classifier{okData =
-                     ClassData{prior = -infinity, unseen = -0.6931471805599453,
-                               likelihoods = HashMap.fromList [], n = 0},
-                   koData =
-                     ClassData{prior = 0.0, unseen = -1.3862943611198906,
-                               likelihoods = HashMap.fromList [("", 0.0)], n = 2}}),
        ("<hour-of-day> third",
         Classifier{okData =
                      ClassData{prior = 0.0, unseen = -2.0794415416798357,
@@ -119,7 +112,7 @@ classifiers
                                likelihoods = HashMap.fromList [], n = 0}}),
        ("<day-of-month> (ordinal or number) <named-month>",
         Classifier{okData =
-                     ClassData{prior = -0.3101549283038396,
+                     ClassData{prior = -0.2411620568168881,
                                unseen = -3.4339872044851463,
                                likelihoods =
                                  HashMap.fromList
@@ -133,14 +126,13 @@ classifiers
                                     ("integer (numeric)March", -2.70805020110221)],
                                n = 11},
                    koData =
-                     ClassData{prior = -1.3217558399823195, unseen = -2.833213344056216,
+                     ClassData{prior = -1.540445040947149, unseen = -2.70805020110221,
                                likelihoods =
                                  HashMap.fromList
-                                   [("integer (numeric)in <named-month>", -2.0794415416798357),
-                                    ("integer (numeric)August", -2.0794415416798357),
-                                    ("month", -1.1631508098056809),
-                                    ("integer (numeric)July", -1.6739764335716716)],
-                               n = 4}}),
+                                   [("integer (numeric)in <named-month>", -1.9459101490553135),
+                                    ("month", -1.252762968495368),
+                                    ("integer (numeric)July", -1.540445040947149)],
+                               n = 3}}),
        ("<time> <part-of-day>",
         Classifier{okData =
                      ClassData{prior = -0.41616039722491244,
@@ -327,36 +319,37 @@ classifiers
                                likelihoods = HashMap.fromList [], n = 0}}),
        ("on <date>",
         Classifier{okData =
-                     ClassData{prior = -0.6931471805599453, unseen = -3.713572066704308,
+                     ClassData{prior = -0.6131044728864089,
+                               unseen = -3.7612001156935624,
                                likelihoods =
                                  HashMap.fromList
                                    [("<day-of-month> (ordinal or number) <named-month>",
-                                     -2.5902671654458267),
-                                    ("September", -2.995732273553991),
+                                     -2.639057329615259),
+                                    ("September", -3.044522437723423),
+                                    ("second", -3.044522437723423),
                                     ("<day-of-month> (ordinal or number) of <named-month>",
-                                     -2.995732273553991),
-                                    ("day", -1.3862943611198906), ("year", -2.5902671654458267),
-                                    ("part of <named-month>", -2.0794415416798357),
-                                    ("month", -2.995732273553991),
-                                    ("year (integer)", -2.5902671654458267),
-                                    ("this|last the <cycle>", -2.995732273553991),
-                                    ("day of <named-month>", -2.995732273553991)],
-                               n = 12},
+                                     -3.044522437723423),
+                                    ("day", -1.4350845252893227), ("year", -2.639057329615259),
+                                    ("part of <named-month>", -2.128231705849268),
+                                    ("month", -3.044522437723423),
+                                    ("year (integer)", -2.639057329615259),
+                                    ("this|last the <cycle>", -2.639057329615259),
+                                    ("day of <named-month>", -3.044522437723423)],
+                               n = 13},
                    koData =
-                     ClassData{prior = -0.6931471805599453, unseen = -3.713572066704308,
+                     ClassData{prior = -0.7801585575495751,
+                               unseen = -3.6635616461296463,
                                likelihoods =
                                  HashMap.fromList
-                                   [("September", -2.995732273553991),
-                                    ("October", -2.995732273553991),
-                                    ("intersect", -2.0794415416798357),
-                                    ("Saturday", -2.995732273553991),
-                                    ("<time> for <duration>", -2.5902671654458267),
-                                    ("day", -2.995732273553991),
-                                    ("month (ordinal)", -2.995732273553991),
+                                   [("September", -2.9444389791664407),
+                                    ("October", -2.9444389791664407),
+                                    ("intersect", -2.0281482472922856),
+                                    ("<time> for <duration>", -2.538973871058276),
+                                    ("month (ordinal)", -2.9444389791664407),
                                     ("intersect by \",\", \"of\", \"from\", \"'s\"",
-                                     -2.5902671654458267),
-                                    ("month", -1.2039728043259361)],
-                               n = 12}}),
+                                     -2.538973871058276),
+                                    ("month", -1.1526795099383855)],
+                               n = 11}}),
        ("<hour-of-day> and integer minutes",
         Classifier{okData =
                      ClassData{prior = -0.15415067982725836,
@@ -459,166 +452,163 @@ classifiers
                                likelihoods = HashMap.fromList [("", 0.0)], n = 39}}),
        ("intersect",
         Classifier{okData =
-                     ClassData{prior = -0.569352963213281, unseen = -5.529429087511423,
+                     ClassData{prior = -0.5458224658030868,
+                               unseen = -5.5134287461649825,
                                likelihoods =
                                  HashMap.fromList
-                                   [("Tuesdayon <date>", -4.832305758571839),
-                                    ("in <named-month>year", -4.832305758571839),
+                                   [("Tuesdayon <date>", -4.816241156068032),
+                                    ("in <named-month>year", -4.816241156068032),
                                     ("<hour-of-day> till thirdafter part of days",
-                                     -4.426840650463674),
-                                    ("dayhour", -3.9160150266976834),
-                                    ("daymonth", -4.832305758571839),
-                                    ("in <named-month>on <date>", -4.832305758571839),
-                                    ("monthyear", -3.3282283617955644),
-                                    ("Mondayon <date>", -4.832305758571839),
-                                    ("Christmasyear", -4.832305758571839),
+                                     -4.410776047959867),
+                                    ("dayhour", -3.899950424193877),
+                                    ("daymonth", -4.816241156068032),
+                                    ("in <named-month>on <date>", -4.816241156068032),
+                                    ("monthyear", -3.312163759291758),
+                                    ("Mondayon <date>", -4.816241156068032),
+                                    ("Christmasyear", -4.816241156068032),
                                     ("Monday<day-of-month> (ordinal or number) <named-month>",
-                                     -4.832305758571839),
-                                    ("month (integer)year (integer)", -4.426840650463674),
+                                     -4.816241156068032),
+                                    ("month (integer)year (integer)", -4.410776047959867),
                                     ("\1593\1610\1583 \1575\1604\1605\1610\1604\1575\1583year",
-                                     -4.832305758571839),
+                                     -4.816241156068032),
                                     ("<day-of-week> the last of <time><cycle> this|last|next",
-                                     -4.832305758571839),
-                                    ("at <time-of-day>before part of days", -4.139158578011894),
-                                    ("hh:mmbefore part of days", -4.832305758571839),
+                                     -4.816241156068032),
+                                    ("at <time-of-day>before part of days", -4.123093975508087),
+                                    ("hh:mmbefore part of days", -4.816241156068032),
                                     ("intersect by \",\", \"of\", \"from\", \"'s\"year",
-                                     -4.832305758571839),
-                                    ("intersect<time> <part-of-day>", -4.426840650463674),
-                                    ("month (ordinal)year (integer)", -4.832305758571839),
+                                     -4.816241156068032),
+                                    ("intersect<time> <part-of-day>", -4.410776047959867),
+                                    ("month (ordinal)year (integer)", -4.816241156068032),
                                     ("\1593\1610\1583 \1575\1604\1601\1589\1581year",
-                                     -4.832305758571839),
-                                    ("dd/mm<time> <part-of-day>", -4.832305758571839),
-                                    ("Thursday<time> timezone", -4.426840650463674),
+                                     -4.816241156068032),
+                                    ("dd/mm<time> <part-of-day>", -4.816241156068032),
+                                    ("Thursday<time> timezone", -4.410776047959867),
                                     ("<hour-of-day> till quarterthis <part-of-day>",
-                                     -4.426840650463674),
-                                    ("dayday", -3.0405462893437836),
+                                     -4.410776047959867),
+                                    ("dayday", -3.024481686839977),
                                     ("absorption of , after named day<day-of-month> (ordinal or number) <named-month>",
-                                     -4.832305758571839),
-                                    ("hourhour", -3.733693469903729),
-                                    ("month (integer)year", -4.832305758571839),
+                                     -4.816241156068032),
+                                    ("hourhour", -3.717628867399922),
+                                    ("month (integer)year", -4.816241156068032),
                                     ("\1593\1610\1583 \1575\1604\1601\1591\1585year",
-                                     -4.832305758571839),
+                                     -4.816241156068032),
                                     ("Thursday<day-of-month> (ordinal or number) <named-month>",
-                                     -4.832305758571839),
-                                    ("dayyear", -2.960503581670247),
-                                    ("Thursday<time> <part-of-day>", -4.832305758571839),
-                                    ("<cycle> last of <time>year (integer)", -4.426840650463674),
-                                    ("last <cycle> of <time>year (integer)", -4.832305758571839),
-                                    ("<hour-of-day> quarterafter part of days", -4.832305758571839),
-                                    ("minutehour", -2.529720665577793),
+                                     -4.816241156068032),
+                                    ("dayyear", -2.9444389791664407),
+                                    ("Thursday<time> <part-of-day>", -4.816241156068032),
+                                    ("<cycle> last of <time>year (integer)", -4.410776047959867),
+                                    ("last <cycle> of <time>year (integer)", -4.816241156068032),
+                                    ("<hour-of-day> quarterafter part of days", -4.816241156068032),
+                                    ("minutehour", -2.513656063073986),
                                     ("Thursdayfrom <datetime> - <datetime> (interval)",
-                                     -4.832305758571839),
+                                     -4.816241156068032),
                                     ("\1585\1571\1587 \1575\1604\1587\1606\1577 \1575\1604\1607\1580\1585\1610\1577year",
-                                     -4.832305758571839),
-                                    ("Monday<cycle> this|last|next", -4.832305758571839),
+                                     -4.816241156068032),
+                                    ("Monday<cycle> this|last|next", -4.816241156068032),
                                     ("<day-of-month> (ordinal or number) of <named-month>year",
-                                     -4.832305758571839),
-                                    ("<cycle> <ordinal> day? of <time>year", -4.832305758571839),
+                                     -4.816241156068032),
+                                    ("<cycle> <ordinal> day? of <time>year", -4.816241156068032),
                                     ("\1593\1610\1583 \1575\1604\1571\1590\1581\1609year",
-                                     -4.832305758571839),
-                                    ("on a <named-day>dd/mm", -4.832305758571839),
-                                    ("on a <named-day>on <date>", -4.832305758571839),
+                                     -4.816241156068032),
+                                    ("on a <named-day>dd/mm", -4.816241156068032),
+                                    ("on a <named-day>on <date>", -4.816241156068032),
                                     ("on a <named-day><day-of-month> (ordinal or number) <named-month>",
-                                     -4.832305758571839),
-                                    ("Tuesday<cycle> this|last|next", -4.832305758571839),
-                                    ("dayminute", -3.5795427900764705),
-                                    ("dd/mmintersect", -4.832305758571839),
-                                    ("in <named-month><cycle> this|last|next", -4.832305758571839),
+                                     -4.816241156068032),
+                                    ("Tuesday<cycle> this|last|next", -4.816241156068032),
+                                    ("dayminute", -3.563478187572664),
+                                    ("dd/mmintersect", -4.816241156068032),
+                                    ("in <named-month><cycle> this|last|next", -4.816241156068032),
                                     ("<hour-of-day> and integer minutesafter part of days",
-                                     -4.426840650463674),
-                                    ("Saturdaydd/mm", -4.832305758571839),
-                                    ("\1585\1605\1590\1575\1606year", -4.832305758571839),
-                                    ("the <cycle> the <ordinal> of <time>year", -4.832305758571839),
-                                    ("at <time-of-day>after part of days", -3.733693469903729),
-                                    ("<ordinal> <cycle> of <time>year", -4.832305758571839),
-                                    ("Sunday<cycle> this|last|next", -4.832305758571839),
+                                     -4.410776047959867),
+                                    ("Saturdaydd/mm", -4.816241156068032),
+                                    ("\1585\1605\1590\1575\1606year", -4.816241156068032),
+                                    ("the <cycle> the <ordinal> of <time>year", -4.816241156068032),
+                                    ("at <time-of-day>after part of days", -3.717628867399922),
+                                    ("<ordinal> <cycle> of <time>year", -4.816241156068032),
+                                    ("Sunday<cycle> this|last|next", -4.816241156068032),
                                     ("Tuesday<day-of-month> (ordinal or number) of <named-month>",
-                                     -4.426840650463674),
-                                    ("Septemberon <date>", -4.832305758571839),
+                                     -4.410776047959867),
+                                    ("Septemberon <date>", -4.816241156068032),
                                     ("from <datetime> - <datetime> (interval)after part of days",
-                                     -4.832305758571839),
-                                    ("intersectintersect", -4.426840650463674),
-                                    ("dayweek", -4.139158578011894),
-                                    ("weekyear", -3.9160150266976834),
+                                     -4.816241156068032),
+                                    ("intersectintersect", -4.410776047959867),
+                                    ("dayweek", -4.123093975508087),
+                                    ("weekyear", -3.899950424193877),
                                     ("<datetime> - <datetime> (interval)after part of days",
-                                     -4.832305758571839),
+                                     -4.816241156068032),
                                     ("Friday<day-of-month> (ordinal or number) <named-month>",
-                                     -4.832305758571839),
+                                     -4.816241156068032),
                                     ("<hour-of-day> till quarterbefore part of days",
-                                     -4.426840650463674),
+                                     -4.410776047959867),
                                     ("<time-of-day> - <time-of-day> (interval)after part of days",
-                                     -4.832305758571839),
-                                    ("at <time-of-day>this <part-of-day>", -4.832305758571839),
+                                     -4.816241156068032),
+                                    ("at <time-of-day>this <part-of-day>", -4.816241156068032),
                                     ("<hour-of-day> till thirdbefore part of days",
-                                     -4.426840650463674)],
+                                     -4.410776047959867)],
                                n = 73},
                    koData =
-                     ClassData{prior = -0.8344607136265229, unseen = -5.384495062789089,
+                     ClassData{prior = -0.8659899933993561, unseen = -5.337538079701318,
                                likelihoods =
                                  HashMap.fromList
-                                   [("Tuesdayon <date>", -4.686750172980514),
-                                    ("dayhour", -3.18267277620424),
-                                    ("daymonth", -3.5881378843124043),
-                                    ("monthday", -4.686750172980514),
-                                    ("monthyear", -2.814947996078923),
-                                    ("hh:mmafter part of days", -4.686750172980514),
-                                    ("houryear", -4.28128506487235),
-                                    ("intersectat <time-of-day>", -3.770459441106359),
-                                    ("intersect<time> <part-of-day>", -4.28128506487235),
-                                    ("Octoberon <date>", -4.686750172980514),
-                                    ("until <time-of-day>after part of days", -4.686750172980514),
-                                    ("this|last <cycle>on <date>", -4.686750172980514),
-                                    ("Tuesdayafter <time-of-day>", -4.686750172980514),
-                                    ("Wednesdayon <date>", -4.28128506487235),
-                                    ("dd/mm<time> <part-of-day>", -4.686750172980514),
-                                    ("yearyear", -4.28128506487235),
+                                   [("Tuesdayon <date>", -4.639571612705423),
+                                    ("dayhour", -3.1354942159291497),
+                                    ("daymonth", -3.5409593240373143),
+                                    ("monthday", -4.639571612705423),
+                                    ("monthyear", -2.7677694358038325),
+                                    ("hh:mmafter part of days", -4.639571612705423),
+                                    ("houryear", -4.639571612705423),
+                                    ("intersectat <time-of-day>", -3.7232808808312687),
+                                    ("intersect<time> <part-of-day>", -4.23410650459726),
+                                    ("Octoberon <date>", -4.639571612705423),
+                                    ("until <time-of-day>after part of days", -4.639571612705423),
+                                    ("Tuesdayafter <time-of-day>", -4.639571612705423),
+                                    ("Wednesdayon <date>", -4.23410650459726),
+                                    ("dd/mm<time> <part-of-day>", -4.639571612705423),
+                                    ("yearyear", -4.23410650459726),
                                     ("<hour-of-day> till quarterthis <part-of-day>",
-                                     -4.686750172980514),
-                                    ("dayday", -3.993602992420569),
-                                    ("dd/mmat <time-of-day>", -4.28128506487235),
-                                    ("hourhour", -4.28128506487235),
-                                    ("dayyear", -3.4339872044851463),
-                                    ("Thursdayat <time-of-day>", -4.28128506487235),
-                                    ("Februaryyear", -4.686750172980514),
-                                    ("minutemonth", -4.686750172980514),
-                                    ("minutehour", -4.28128506487235),
-                                    ("for <duration> from <time>on <date>", -4.686750172980514),
+                                     -4.639571612705423),
+                                    ("dayday", -3.9464244321454784),
+                                    ("dd/mmat <time-of-day>", -4.23410650459726),
+                                    ("hourhour", -4.23410650459726),
+                                    ("dayyear", -3.386808644210056),
+                                    ("Thursdayat <time-of-day>", -4.23410650459726),
+                                    ("Februaryyear", -4.639571612705423),
+                                    ("minutemonth", -4.639571612705423),
+                                    ("minutehour", -4.23410650459726),
                                     ("<day-of-month> (ordinal or number) of <named-month>year",
-                                     -4.28128506487235),
-                                    ("March<cycle> this|last|next", -4.686750172980514),
-                                    ("nth <time> of <time>year", -4.686750172980514),
+                                     -4.23410650459726),
+                                    ("March<cycle> this|last|next", -4.639571612705423),
+                                    ("nth <time> of <time>year", -4.639571612705423),
                                     ("Wednesday<day-of-month> (ordinal or number) of <named-month>",
-                                     -4.686750172980514),
-                                    ("secondyear", -4.28128506487235),
+                                     -4.639571612705423),
+                                    ("secondyear", -4.639571612705423),
                                     ("Wednesdayintersect by \",\", \"of\", \"from\", \"'s\"",
-                                     -4.686750172980514),
-                                    ("on <date>year (integer)", -4.686750172980514),
-                                    ("<time> for <duration>year", -3.5881378843124043),
+                                     -4.639571612705423),
+                                    ("on <date>year (integer)", -4.639571612705423),
+                                    ("<time> for <duration>year", -3.5409593240373143),
                                     ("<duration> after|before|from <time>on <date>",
-                                     -4.686750172980514),
-                                    ("dayminute", -3.18267277620424),
-                                    ("Julyuntil <time-of-day>", -4.686750172980514),
-                                    ("intersecton <date>", -4.686750172980514),
-                                    ("at <time-of-day>after part of days", -4.686750172980514),
-                                    ("Octoberyear", -4.686750172980514),
-                                    ("in|within|after <duration>year", -4.28128506487235),
+                                     -4.639571612705423),
+                                    ("dayminute", -3.1354942159291497),
+                                    ("Julyuntil <time-of-day>", -4.639571612705423),
+                                    ("intersecton <date>", -4.639571612705423),
+                                    ("at <time-of-day>after part of days", -4.639571612705423),
+                                    ("Octoberyear", -4.639571612705423),
+                                    ("in|within|after <duration>year", -4.23410650459726),
                                     ("Tuesday<day-of-month> (ordinal or number) of <named-month>",
-                                     -4.686750172980514),
-                                    ("on a <named-day>intersect", -4.28128506487235),
-                                    ("Saturdayintersect", -4.28128506487235),
-                                    ("at <time-of-day>year", -4.686750172980514),
-                                    ("on <date>year", -4.28128506487235),
-                                    ("on <date>on <date>", -4.686750172980514),
-                                    ("weekday", -4.686750172980514),
-                                    ("Tuesdaynth <time> of <time>", -4.686750172980514),
-                                    ("weekyear", -4.686750172980514),
-                                    ("Tuesdayintersect", -4.686750172980514),
-                                    ("after <time-of-day>year", -4.686750172980514),
-                                    ("in <number> (implicit minutes)February", -4.686750172980514),
-                                    ("last <cycle> of <time>year", -4.686750172980514),
+                                     -4.639571612705423),
+                                    ("on a <named-day>intersect", -4.23410650459726),
+                                    ("Saturdayintersect", -4.23410650459726),
+                                    ("on <date>year", -4.23410650459726),
+                                    ("on <date>on <date>", -4.639571612705423),
+                                    ("Tuesdaynth <time> of <time>", -4.639571612705423),
+                                    ("weekyear", -4.639571612705423),
+                                    ("Tuesdayintersect", -4.639571612705423),
+                                    ("after <time-of-day>year", -4.639571612705423),
+                                    ("in <number> (implicit minutes)February", -4.639571612705423),
+                                    ("last <cycle> of <time>year", -4.639571612705423),
                                     ("<day-of-month> (ordinal or number) of <named-month>on <date>",
-                                     -4.686750172980514)],
-                               n = 56}}),
+                                     -4.639571612705423)],
+                               n = 53}}),
        ("\1585\1605\1590\1575\1606",
         Classifier{okData =
                      ClassData{prior = 0.0, unseen = -1.0986122886681098,
@@ -706,13 +696,11 @@ classifiers
                                likelihoods = HashMap.fromList [], n = 0}}),
        ("Saturday",
         Classifier{okData =
-                     ClassData{prior = -0.2876820724517809,
-                               unseen = -1.6094379124341003,
+                     ClassData{prior = 0.0, unseen = -1.6094379124341003,
                                likelihoods = HashMap.fromList [("", 0.0)], n = 3},
                    koData =
-                     ClassData{prior = -1.3862943611198906,
-                               unseen = -1.0986122886681098,
-                               likelihoods = HashMap.fromList [("", 0.0)], n = 1}}),
+                     ClassData{prior = -infinity, unseen = -0.6931471805599453,
+                               likelihoods = HashMap.fromList [], n = 0}}),
        ("integer 21..99",
         Classifier{okData =
                      ClassData{prior = 0.0, unseen = -1.6094379124341003,
@@ -796,12 +784,11 @@ classifiers
                                likelihoods = HashMap.fromList [], n = 0}}),
        ("yesterday",
         Classifier{okData =
-                     ClassData{prior = -0.1823215567939546,
-                               unseen = -1.9459101490553135,
+                     ClassData{prior = 0.0, unseen = -1.9459101490553135,
                                likelihoods = HashMap.fromList [("", 0.0)], n = 5},
                    koData =
-                     ClassData{prior = -1.791759469228055, unseen = -1.0986122886681098,
-                               likelihoods = HashMap.fromList [("", 0.0)], n = 1}}),
+                     ClassData{prior = -infinity, unseen = -0.6931471805599453,
+                               likelihoods = HashMap.fromList [], n = 0}}),
        ("hh:mm:ss",
         Classifier{okData =
                      ClassData{prior = 0.0, unseen = -1.0986122886681098,
@@ -976,39 +963,37 @@ classifiers
                                likelihoods = HashMap.fromList [], n = 0}}),
        ("<day-of-month> (ordinal or number) of <named-month>",
         Classifier{okData =
-                     ClassData{prior = -0.6131044728864089,
-                               unseen = -3.7376696182833684,
+                     ClassData{prior = -0.570544858467613, unseen = -3.713572066704308,
                                likelihoods =
                                  HashMap.fromList
                                    [("ordinals (thirtieth..nineteenth)February",
-                                     -2.6149597780361984),
-                                    ("ordinals (first..tenth)October", -2.6149597780361984),
-                                    ("ordinals (first..tenth)April", -2.6149597780361984),
-                                    ("ordinals (first..tenth)February", -3.0204248861443626),
-                                    ("ordinals (first..tenth)month (integer)", -2.6149597780361984),
-                                    ("ordinals (first..tenth)March", -2.6149597780361984),
-                                    ("month", -1.074514737089049),
+                                     -2.5902671654458267),
+                                    ("ordinals (first..tenth)October", -2.5902671654458267),
+                                    ("ordinals (first..tenth)April", -2.5902671654458267),
+                                    ("ordinals (first..tenth)February", -2.995732273553991),
+                                    ("ordinals (first..tenth)month (integer)", -2.5902671654458267),
+                                    ("ordinals (first..tenth)March", -2.5902671654458267),
+                                    ("month", -1.0498221244986778),
                                     ("ordinals (first..tenth)in <named-month>",
-                                     -2.6149597780361984)],
+                                     -2.5902671654458267)],
                                n = 13},
                    koData =
-                     ClassData{prior = -0.7801585575495751,
-                               unseen = -3.6375861597263857,
+                     ClassData{prior = -0.832909122935104, unseen = -3.5553480614894135,
                                likelihoods =
                                  HashMap.fromList
-                                   [("integer 2in <named-month>", -2.917770732084279),
-                                    ("integer 10February", -2.512305623976115),
-                                    ("integer (numeric)month (ordinal)", -2.917770732084279),
-                                    ("ordinals (first..tenth)month (integer)", -2.917770732084279),
-                                    ("integer (20..90)in <named-month>", -2.917770732084279),
+                                   [("integer 2in <named-month>", -2.833213344056216),
+                                    ("integer 10February", -2.4277482359480516),
+                                    ("integer (numeric)month (ordinal)", -2.833213344056216),
+                                    ("ordinals (first..tenth)month (integer)", -2.833213344056216),
+                                    ("integer (20..90)in <named-month>", -2.833213344056216),
                                     ("ordinals (composite, e.g., eighty-seven)in <named-month>",
-                                     -2.917770732084279),
+                                     -2.833213344056216),
                                     ("ordinals (twenty, thirty..ninety)in <named-month>",
-                                     -2.917770732084279),
-                                    ("month", -1.126011262856224),
-                                    ("ordinals (first..tenth)in <named-month>", -2.512305623976115),
-                                    ("ordinals (first..tenth)August", -2.917770732084279)],
-                               n = 11}}),
+                                     -2.833213344056216),
+                                    ("month", -1.128465251817791),
+                                    ("ordinals (first..tenth)in <named-month>",
+                                     -2.4277482359480516)],
+                               n = 10}}),
        ("this <part-of-day>",
         Classifier{okData =
                      ClassData{prior = -1.0986122886681098,
@@ -1045,13 +1030,6 @@ classifiers
                    koData =
                      ClassData{prior = -infinity, unseen = -1.9459101490553135,
                                likelihoods = HashMap.fromList [], n = 0}}),
-       ("powers of tens",
-        Classifier{okData =
-                     ClassData{prior = -infinity, unseen = -0.6931471805599453,
-                               likelihoods = HashMap.fromList [], n = 0},
-                   koData =
-                     ClassData{prior = 0.0, unseen = -2.0794415416798357,
-                               likelihoods = HashMap.fromList [("", 0.0)], n = 6}}),
        ("Friday",
         Classifier{okData =
                      ClassData{prior = 0.0, unseen = -1.6094379124341003,
@@ -1199,19 +1177,15 @@ classifiers
                                likelihoods = HashMap.fromList [], n = 0}}),
        ("year",
         Classifier{okData =
-                     ClassData{prior = -0.9932517730102834,
-                               unseen = -2.5649493574615367,
-                               likelihoods =
-                                 HashMap.fromList [("integer (numeric)", -8.701137698962981e-2)],
+                     ClassData{prior = -0.7419373447293773,
+                               unseen = -2.4849066497880004,
+                               likelihoods = HashMap.fromList [("integer (numeric)", 0.0)],
                                n = 10},
                    koData =
-                     ClassData{prior = -0.46262352194811296,
-                               unseen = -2.995732273553991,
-                               likelihoods =
-                                 HashMap.fromList
-                                   [("integer (numeric)", -0.4595323293784402),
-                                    ("powers of tens", -0.9985288301111273)],
-                               n = 17}}),
+                     ClassData{prior = -0.6466271649250525,
+                               unseen = -2.5649493574615367,
+                               likelihoods = HashMap.fromList [("integer (numeric)", 0.0)],
+                               n = 11}}),
        ("last <day-of-week> of <time>",
         Classifier{okData =
                      ClassData{prior = 0.0, unseen = -2.0794415416798357,
@@ -1256,12 +1230,13 @@ classifiers
                                likelihoods = HashMap.fromList [], n = 0}}),
        ("integer 10",
         Classifier{okData =
-                     ClassData{prior = -0.8472978603872037,
+                     ClassData{prior = -0.6931471805599453,
                                unseen = -2.3978952727983707,
                                likelihoods = HashMap.fromList [("", 0.0)], n = 9},
                    koData =
-                     ClassData{prior = -0.5596157879354228, unseen = -2.639057329615259,
-                               likelihoods = HashMap.fromList [("", 0.0)], n = 12}}),
+                     ClassData{prior = -0.6931471805599453,
+                               unseen = -2.3978952727983707,
+                               likelihoods = HashMap.fromList [("", 0.0)], n = 9}}),
        ("from <day-of-month> (ordinal or number) to <day-of-month> (ordinal or number) <named-month> (interval)",
         Classifier{okData =
                      ClassData{prior = 0.0, unseen = -2.0794415416798357,
@@ -1297,28 +1272,26 @@ classifiers
                                likelihoods = HashMap.fromList [("", 0.0)], n = 1}}),
        ("<hour-of-day> and integer",
         Classifier{okData =
-                     ClassData{prior = -1.3217558399823195, unseen = -2.890371757896165,
+                     ClassData{prior = -1.252762968495368, unseen = -2.833213344056216,
                                likelihoods =
                                  HashMap.fromList
-                                   [("at <time-of-day>integer (13..19)", -2.1400661634962708),
-                                    ("at <time-of-day>integer 21..99", -1.7346010553881064),
-                                    ("hour", -1.2237754316221157),
-                                    ("at <time-of-day>integer (numeric)", -2.1400661634962708)],
+                                   [("at <time-of-day>integer (13..19)", -2.0794415416798357),
+                                    ("at <time-of-day>integer 21..99", -1.6739764335716716),
+                                    ("hour", -1.1631508098056809),
+                                    ("at <time-of-day>integer (numeric)", -2.0794415416798357)],
                                n = 4},
                    koData =
-                     ClassData{prior = -0.3101549283038396,
-                               unseen = -3.4657359027997265,
+                     ClassData{prior = -0.3364722366212129, unseen = -3.367295829986474,
                                likelihoods =
                                  HashMap.fromList
-                                   [("at <time-of-day>integer 5", -2.3353749158170367),
-                                    ("at <time-of-day>integer (13..19)", -2.3353749158170367),
-                                    ("at <time-of-day>integer 3", -2.740840023925201),
-                                    ("at <time-of-day>integer 4", -2.740840023925201),
-                                    ("at <time-of-day>integer (20..90)", -2.740840023925201),
-                                    ("at <time-of-day>integer 8", -2.3353749158170367),
-                                    ("hour", -0.9490805546971459),
-                                    ("at <time-of-day>integer (numeric)", -2.3353749158170367)],
-                               n = 11}}),
+                                   [("at <time-of-day>integer 5", -2.2335922215070942),
+                                    ("at <time-of-day>integer (13..19)", -2.2335922215070942),
+                                    ("at <time-of-day>integer 3", -2.639057329615259),
+                                    ("at <time-of-day>integer (20..90)", -2.639057329615259),
+                                    ("at <time-of-day>integer 8", -2.2335922215070942),
+                                    ("hour", -0.9343092373768334),
+                                    ("at <time-of-day>integer (numeric)", -2.2335922215070942)],
+                               n = 10}}),
        ("month (ordinal)",
         Classifier{okData =
                      ClassData{prior = 0.0, unseen = -1.3862943611198906,
@@ -1327,19 +1300,13 @@ classifiers
                    koData =
                      ClassData{prior = -infinity, unseen = -0.6931471805599453,
                                likelihoods = HashMap.fromList [], n = 0}}),
-       ("integer 4",
-        Classifier{okData =
-                     ClassData{prior = -infinity, unseen = -0.6931471805599453,
-                               likelihoods = HashMap.fromList [], n = 0},
-                   koData =
-                     ClassData{prior = 0.0, unseen = -2.1972245773362196,
-                               likelihoods = HashMap.fromList [("", 0.0)], n = 7}}),
        ("second (grain) ",
         Classifier{okData =
-                     ClassData{prior = -infinity, unseen = -0.6931471805599453,
-                               likelihoods = HashMap.fromList [], n = 0},
+                     ClassData{prior = -1.6094379124341003,
+                               unseen = -1.0986122886681098,
+                               likelihoods = HashMap.fromList [("", 0.0)], n = 1},
                    koData =
-                     ClassData{prior = 0.0, unseen = -1.791759469228055,
+                     ClassData{prior = -0.2231435513142097, unseen = -1.791759469228055,
                                likelihoods = HashMap.fromList [("", 0.0)], n = 4}}),
        ("\1593\1610\1583 \1575\1604\1601\1589\1581",
         Classifier{okData =
@@ -1459,12 +1426,11 @@ classifiers
                                n = 17}}),
        ("integer 3",
         Classifier{okData =
-                     ClassData{prior = -1.0560526742493137,
-                               unseen = -2.3025850929940455,
+                     ClassData{prior = 0.0, unseen = -2.3025850929940455,
                                likelihoods = HashMap.fromList [("", 0.0)], n = 8},
                    koData =
-                     ClassData{prior = -0.4274440148269396, unseen = -2.833213344056216,
-                               likelihoods = HashMap.fromList [("", 0.0)], n = 15}}),
+                     ClassData{prior = -infinity, unseen = -0.6931471805599453,
+                               likelihoods = HashMap.fromList [], n = 0}}),
        ("last <time>",
         Classifier{okData =
                      ClassData{prior = -infinity, unseen = -1.791759469228055,
@@ -1681,19 +1647,21 @@ classifiers
                                likelihoods = HashMap.fromList [("", 0.0)], n = 2}}),
        ("this|last the <cycle>",
         Classifier{okData =
-                     ClassData{prior = 0.0, unseen = -2.9444389791664407,
+                     ClassData{prior = 0.0, unseen = -3.1354942159291497,
                                likelihoods =
                                  HashMap.fromList
-                                   [("week", -1.791759469228055),
-                                    ("month (grain)", -2.1972245773362196),
-                                    ("year (grain)", -2.1972245773362196),
-                                    ("week (grain)", -1.791759469228055),
-                                    ("day", -2.1972245773362196), ("year", -2.1972245773362196),
-                                    ("month", -2.1972245773362196),
-                                    ("day (grain)", -2.1972245773362196)],
-                               n = 5},
+                                   [("week", -1.9924301646902063),
+                                    ("month (grain)", -2.3978952727983707),
+                                    ("year (grain)", -2.3978952727983707),
+                                    ("second", -2.3978952727983707),
+                                    ("week (grain)", -1.9924301646902063),
+                                    ("day", -2.3978952727983707), ("year", -2.3978952727983707),
+                                    ("second (grain) ", -2.3978952727983707),
+                                    ("month", -2.3978952727983707),
+                                    ("day (grain)", -2.3978952727983707)],
+                               n = 6},
                    koData =
-                     ClassData{prior = -infinity, unseen = -2.1972245773362196,
+                     ClassData{prior = -infinity, unseen = -2.3978952727983707,
                                likelihoods = HashMap.fromList [], n = 0}}),
        ("in <named-month>",
         Classifier{okData =
@@ -1759,28 +1727,27 @@ classifiers
                                n = 3}}),
        ("last <cycle> of <time>",
         Classifier{okData =
-                     ClassData{prior = -0.5596157879354228,
-                               unseen = -2.9444389791664407,
+                     ClassData{prior = -0.40546510810816444,
+                               unseen = -2.833213344056216,
                                likelihoods =
                                  HashMap.fromList
-                                   [("daymonth", -1.791759469228055),
+                                   [("daymonth", -1.6739764335716716),
                                     ("week (grain)intersect by \",\", \"of\", \"from\", \"'s\"",
-                                     -2.1972245773362196),
-                                    ("day (grain)intersect", -2.1972245773362196),
-                                    ("weekmonth", -1.791759469228055),
-                                    ("week (grain)September", -2.1972245773362196),
-                                    ("day (grain)month (integer)", -2.1972245773362196)],
+                                     -2.0794415416798357),
+                                    ("day (grain)intersect", -2.0794415416798357),
+                                    ("weekmonth", -1.6739764335716716),
+                                    ("week (grain)September", -2.0794415416798357),
+                                    ("day (grain)month (integer)", -2.0794415416798357)],
                                n = 4},
                    koData =
-                     ClassData{prior = -0.8472978603872037, unseen = -2.833213344056216,
+                     ClassData{prior = -1.0986122886681098,
+                               unseen = -2.5649493574615367,
                                likelihoods =
                                  HashMap.fromList
-                                   [("week (grain)<time> for <duration>", -2.0794415416798357),
-                                    ("weekmonth", -1.6739764335716716),
-                                    ("weekday", -2.0794415416798357),
-                                    ("week (grain)intersect", -2.0794415416798357),
-                                    ("week (grain)Saturday", -2.0794415416798357)],
-                               n = 3}}),
+                                   [("week (grain)<time> for <duration>", -1.791759469228055),
+                                    ("weekmonth", -1.3862943611198906),
+                                    ("week (grain)intersect", -1.791759469228055)],
+                               n = 2}}),
        ("ordinals (composite, e.g., eighty-seven)",
         Classifier{okData =
                      ClassData{prior = 0.0, unseen = -1.3862943611198906,
@@ -1832,19 +1799,6 @@ classifiers
                    koData =
                      ClassData{prior = -infinity, unseen = -0.6931471805599453,
                                likelihoods = HashMap.fromList [], n = 0}}),
-       ("for <duration> from <time>",
-        Classifier{okData =
-                     ClassData{prior = -infinity, unseen = -1.3862943611198906,
-                               likelihoods = HashMap.fromList [], n = 0},
-                   koData =
-                     ClassData{prior = 0.0, unseen = -2.0794415416798357,
-                               likelihoods =
-                                 HashMap.fromList
-                                   [("single <unit-of-duration>intersect", -1.252762968495368),
-                                    ("single <unit-of-duration>in <named-month>",
-                                     -1.252762968495368),
-                                    ("secondmonth", -0.8472978603872037)],
-                               n = 2}}),
        ("<day-of-week> the last of <time>",
         Classifier{okData =
                      ClassData{prior = 0.0, unseen = -2.3978952727983707,
@@ -1888,15 +1842,6 @@ classifiers
                    koData =
                      ClassData{prior = -infinity, unseen = -1.6094379124341003,
                                likelihoods = HashMap.fromList [], n = 0}}),
-       ("compose by multiplication",
-        Classifier{okData =
-                     ClassData{prior = -infinity, unseen = -0.6931471805599453,
-                               likelihoods = HashMap.fromList [], n = 0},
-                   koData =
-                     ClassData{prior = 0.0, unseen = -1.0986122886681098,
-                               likelihoods =
-                                 HashMap.fromList [("integer (numeric)powers of tens", 0.0)],
-                               n = 1}}),
        ("<month> dd-dd (interval)",
         Classifier{okData =
                      ClassData{prior = 0.0, unseen = -2.3025850929940455,
@@ -1953,7 +1898,7 @@ classifiers
                                n = 14}}),
        ("single <unit-of-duration>",
         Classifier{okData =
-                     ClassData{prior = -3.58351893845611, unseen = -3.1354942159291497,
+                     ClassData{prior = -3.590439381300684, unseen = -3.1354942159291497,
                                likelihoods =
                                  HashMap.fromList
                                    [("week", -1.9924301646902063),
@@ -1962,24 +1907,23 @@ classifiers
                                     ("day (grain)", -1.9924301646902063)],
                                n = 4},
                    koData =
-                     ClassData{prior = -2.8170876966696335e-2,
-                               unseen = -5.68697535633982,
+                     ClassData{prior = -2.797385204240618e-2, unseen = -5.6937321388027,
                                likelihoods =
                                  HashMap.fromList
-                                   [("week", -2.639057329615259),
-                                    ("month (grain)", -2.249592562853535),
-                                    ("hour (grain)", -1.9947003132247452),
-                                    ("year (grain)", -2.793208009442517),
-                                    ("second", -4.074141854904581),
-                                    ("week (grain)", -2.639057329615259),
-                                    ("day", -2.592537313980366),
-                                    ("minute (grain)", -3.380994674344636),
-                                    ("year", -2.793208009442517),
-                                    ("second (grain) ", -4.074141854904581),
-                                    ("hour", -1.9947003132247452), ("month", -2.249592562853535),
-                                    ("minute", -3.380994674344636),
-                                    ("day (grain)", -2.592537313980366)],
-                               n = 140}}),
+                                   [("week", -2.6458370166006375),
+                                    ("month (grain)", -2.2563722498389143),
+                                    ("hour (grain)", -2.001480000210124),
+                                    ("year (grain)", -2.7999876964278956),
+                                    ("second", -3.898599985096005),
+                                    ("week (grain)", -2.6458370166006375),
+                                    ("day", -2.5993170009657445),
+                                    ("minute (grain)", -3.3877743613300146),
+                                    ("year", -2.7999876964278956),
+                                    ("second (grain) ", -3.898599985096005),
+                                    ("hour", -2.001480000210124), ("month", -2.2563722498389143),
+                                    ("minute", -3.3877743613300146),
+                                    ("day (grain)", -2.5993170009657445)],
+                               n = 141}}),
        ("dd-dd <month> (interval)",
         Classifier{okData =
                      ClassData{prior = 0.0, unseen = -2.3025850929940455,
@@ -2005,10 +1949,8 @@ classifiers
                                likelihoods = HashMap.fromList [], n = 0}}),
        ("August",
         Classifier{okData =
-                     ClassData{prior = -2.0794415416798357,
-                               unseen = -1.3862943611198906,
+                     ClassData{prior = 0.0, unseen = -1.3862943611198906,
                                likelihoods = HashMap.fromList [("", 0.0)], n = 2},
                    koData =
-                     ClassData{prior = -0.13353139262452263,
-                               unseen = -2.772588722239781,
-                               likelihoods = HashMap.fromList [("", 0.0)], n = 14}})]
\ No newline at end of file
+                     ClassData{prior = -infinity, unseen = -0.6931471805599453,
+                               likelihoods = HashMap.fromList [], n = 0}})]
\ No newline at end of file
diff --git a/Duckling/Time/AR/Corpus.hs b/Duckling/Time/AR/Corpus.hs
index 23165cce..985a38f9 100644
--- a/Duckling/Time/AR/Corpus.hs
+++ b/Duckling/Time/AR/Corpus.hs
@@ -22,19 +22,21 @@ import Duckling.Time.Types hiding (Month)
 import Duckling.TimeGrain.Types hiding (add)
 import Duckling.Testing.Types hiding (examples)
 
-context :: Context
-context = testContext {locale = makeLocale AR Nothing}
-
-corpus :: Corpus
-corpus = (context, testOptions, allExamples)
-
 negativeCorpus :: NegativeCorpus
 negativeCorpus = (context, testOptions, examples)
   where
     examples =
       [ "حب"
+      , "اياب"
+      , "ابحث"
       ]
 
+context :: Context
+context = testContext {locale = makeLocale AR Nothing}
+
+corpus :: Corpus
+corpus = (context, testOptions, allExamples)
+
 allExamples :: [Example]
 allExamples = concat
   [ examples (datetime (2013, 2, 12, 4, 30, 0) Second)
diff --git a/Duckling/Types/Document.hs b/Duckling/Types/Document.hs
index d81a0e5a..5d223549 100644
--- a/Duckling/Types/Document.hs
+++ b/Duckling/Types/Document.hs
@@ -125,9 +125,59 @@ data CharClass
 -- the reasonability of the match to actually be a word.
 isRangeValid :: Lang -> Document -> Int -> Int -> Bool
 isRangeValid = \case
+  AR -> arIsRangeValid
   ZH -> zhIsRangeValid
   _ -> defaultIsRangeValid
   where
+    arIsRangeValid :: Document -> Int -> Int -> Bool
+    arIsRangeValid doc start end =
+      ((start == 0 ||
+            isDifferent (doc ! (start - 1)) (doc ! (start))) &&
+        (end == length doc ||
+            isDifferent (doc ! (end - 1)) (doc ! (end)))) ||
+      -- Is Arabic proclitic?
+      (start == end - 1 &&
+        isArabicProclitic (doc ! start) &&
+        (start == 0 || isDifferent (doc ! (start - 1)) (doc ! start))) ||
+      (start == end - 2 &&
+        isArabicProclitic2 (doc ! start) (doc ! (start + 1)) &&
+        (start == 0 || isDifferent (doc ! (start - 1)) (doc ! start))) ||
+      -- Is preceeded by proclitic
+      (start /= 0 && isArabicProclitic (doc ! (start - 1)) &&
+        (end == length doc ||
+          isDifferent (doc ! (end - 1)) (doc ! (end)))) ||
+      -- Is Arabic enclitic?
+      (start == (end - 2) && isArabicEnclitic (doc ! start) (doc ! (end - 1)) &&
+        (end == length doc || isDifferent (doc ! end) (doc ! (end + 1)))) ||
+      -- Is followed by enclitic
+      ((start ==0 || isDifferent (doc ! (start - 1)) (doc ! (start))) &&
+        (end <= (length doc - 2) &&
+          isArabicEnclitic (doc ! (end)) (doc ! (end + 1))))
+      where
+        -- This list isn't exhasutive since Arabic have some diacritics and rarely used characters in Unicode
+        isArabic :: Char -> Bool
+        isArabic c = elem c ['ا', 'ب', 'ت', 'ة', 'ث', 'ج', 'ح', 'خ', 'د', 'ذ', 'ر', 'ز', 'س', 'ش', 'ص', 'ض', 'ط', 'ظ', 'ع', 'غ', 'ف', 'ق', 'ك', 'ل', 'م', 'ن', 'ه', 'ي', 'ء', 'آ', 'أ', 'إ', 'ؤ', 'و', 'ئ', 'ى']
+
+        -- TODO: Add all Arabic proclitics
+        isArabicProclitic :: Char -> Bool
+        isArabicProclitic c = elem c ['و', 'ف', 'ل', 'ب', 'ك']
+
+        isArabicProclitic2 :: Char -> Char -> Bool
+        isArabicProclitic2 c1 c2 = elem c1 ['ا', 'ل'] && elem c2 ['ل']
+
+        -- TODO: Add all Arabic proclitics
+        isArabicEnclitic :: Char -> Char -> Bool
+        isArabicEnclitic c1 c2 = elem c1 ['ا', 'ي'] && elem c2 ['ن']
+
+        charClass :: Char -> CharClass
+        charClass c
+          | Char.isLower c || Char.isUpper c || isArabic c = Alpha
+          | Char.isDigit c = Digit
+          | otherwise = Self c
+
+        isDifferent :: Char -> Char -> Bool
+        isDifferent a b = charClass a /= charClass b
+
     zhIsRangeValid :: Document -> Int -> Int -> Bool
     zhIsRangeValid doc start end =
       (start == 0 ||
diff --git a/tests/Duckling/Quantity/AR/Tests.hs b/tests/Duckling/Quantity/AR/Tests.hs
index 1897e84f..3ca1cf2a 100644
--- a/tests/Duckling/Quantity/AR/Tests.hs
+++ b/tests/Duckling/Quantity/AR/Tests.hs
@@ -20,4 +20,5 @@ import Duckling.Testing.Asserts
 tests :: TestTree
 tests = testGroup "AR Tests"
   [ makeCorpusTest [Seal Quantity] corpus
+  , makeNegativeCorpusTest [Seal Time] negativeCorpus
   ]