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  1. PREDICATES
  2.  
  3. слева(string,string)
  4. справа(string,string)
  5. раньше(string,string)
  6. ряд(string,string,string,string,string)
  7.  
  8. CLAUSES
  9.  
  10. раньше(Олег, Юра).
  11. раньше(Юра, Миша).
  12.  
  13. слева(Витя, Миша).
  14. справа(Миша, Саша).
  15.  
  16. ряд(Q, W, E, R, T):- раньше(Q, W), раньше(W, R), слева(E, R), справа(R, T).
  17. GOAL
  18. ряд(Q, W, E, R, T), write(Q,-,W,-,E,-,R,-,T),nl.
Compilation error #stdin compilation error #stdout 0s 0KB
stdin
Standard input is empty
compilation info
prog.pl:3:1: syntax error: . or operator expected after expression
prog.pl:11:1: syntax error: expression expected
prog.pl:13:1: syntax error: expression expected
prog.pl:14:1: syntax error: expression expected
prog.pl:16:1: syntax error: expression expected
prog.pl:18:1: syntax error: . or operator expected after expression
	6 error(s)
compilation failed
stdout
Standard output is empty