```catala
# Copyright © Aïda Ibrahim and Hugo Gimbert -- LaBRI/CNRS/Université de Bordeaux/Université de Nantes
```
```catala-metadata
declaration enumeration BenefitingOrganisation :
  -- Charitable
  -- NonProfit
  --ObjectOfPublicOrCharitableCharacter
  --NonCharitable
  --ProfitOrg
  --PrivatePurspose

declaration structure ArtUnion:
  data grossProceeds content money
  data typeOrg content BenefitingOrganisation
  data proceedsToBenefitingOrg content money
  data totalValueOfThePrizes content money
  data maxAmountMoneyAsSeparatePrize content money
  data holdsAuthority content boolean

declaration scope GamingAuthorized:
  input artUnion content ArtUnion
  internal minimumProceeds content boolean
  internal benefitingOrg content boolean
  internal valueOfPrizes content boolean
  internal separatePrizeMaxValue content boolean
  internal authority content boolean
  output authorized condition
```

Art union gaming activities
The awarding of prizes by lot by an art union (an art union gaming activity) is a
permitted gaming activity for the purposes of section 10 of the Act if the following
requirements are complied with—


(a) not less than 30% of the gross proceeds of the gaming activity are paid to the
benefiting organisation,
```catala
scope GamingAuthorized:
definition minimumProceeds equals (artUnion.proceedsToBenefitingOrg >=$ artUnion.grossProceeds *$ 30 %)

definition benefitingOrg equals artUnion.typeOrg with pattern BenefitingOrganisation.Charitable or
 artUnion.typeOrg with pattern BenefitingOrganisation.NonProfit or artUnion.typeOrg with pattern BenefitingOrganisation.ObjectOfPublicOrCharitableCharacter

  ```
(b) the total value of all the prizes exceeds $30,000,
```catala
scope GamingAuthorized:
definition valueOfPrizes equals (artUnion.totalValueOfThePrizes >=$ $30,000)

```
(c) the maximum amount of money payable as a separate prize does not exceed
$30,000,
```catala
scope GamingAuthorized:
definition separatePrizeMaxValue equals (artUnion.maxAmountMoneyAsSeparatePrize <=$ $30,000)
```
(d) the person conducting the activity holds an authority to do so that is in force
and the activity is conducted in accordance with the authority
```catala
scope GamingAuthorized:
definition authority equals artUnion.holdsAuthority

scope GamingAuthorized:
  rule authorized
    under condition minimumProceeds and benefitingOrg and valueOfPrizes and separatePrizeMaxValue and authority
    consequence fulfilled

```