# `:shoe, $_, "buccab", {$shoe p/twig}` Type as a single example. Product: a mold whose product is always `p`. Regular form: *1-fixed*. Irregular form: ``` _%foo :shoe(%foo) ``` Example: ``` ~zod:dojo> =a :shoe([%foobar %moobaz]) ~zod:dojo> (a %foo %bar) [%foobar %moobaz] ~zod:dojo> `a`[%foobar %moobaz] [%foobar %moobaz] ~zod:dojo $:a [%foobar %moobaz] ```