fork download
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  1. parent(john,tom).
  2.  
  3.  
Success #stdin #stdout #stderr 0.02s 6964KB
comments (?)
stdin
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?- parent(X,Y).
stdout
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Standard output is empty
stderr
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ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? EOF: exit
https://ideone.com/0beQMM
language:
Prolog (swi 7.6.4)
created:
11 days ago
visibility:
public

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