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  1. :- set_prolog_flag(verbose,silent).
  2. :- prompt(_, '').
  3. :- use_module(library(readutil)).
  4.  
  5. main:-
  6. 	process,
  7. 	halt.
  8.  
  9. woman(lisa).
  10. woman(maggie).
  11. parents(lisa, homer, marge).
  12. parents(maggie, homer, marge).
  13. sister(X, Y):-
  14.   woman(Y),
  15.   parents(X, P, M),
  16.   parents(Y, P, M),
  17.   X \= Y.
  18.  
  19. process:-
  20. 	sister(lisa, X),
  21. 	write(X),
  22. 	true.
  23.  
  24. :- main.
Success #stdin #stdout 0.04s 7468KB
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maggie
https://ideone.com/mvxonw
language:
Prolog (swi 7.6.4)
created:
8 years ago
visibility:
public

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