fork download 
  1. crust(thin).
  2. crust(handtossed).
  3. crust(deepdish).
  4. cheese(mozzarella).
  5. cheese(cheddar).
  6. cheese(parmesan).
  7. topping(none).
  8. topping(pepperoni).
  9. topping(sausage).
  10. topping(onion).
  11. topping(pepper).
  12. likes(author, (thin, handtossed), (cheddar, parmesan), (sausage, onion)).
Success #stdin #stdout 0.04s 6204KB
comments (?)
stdin 
listing(likes(author)).
stdout 
Standard output is empty
https://ideone.com/Snmwy
language:
Prolog (swi 7.6.4)
created:
14 years ago
visibility:
public

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