Подскажите пожалуйста, почему нижеприведенный код компилируется в Visual Prolog, но при компиляции в SWI-prolog выдает ошибки:
?- ERROR: /home/dc/c0ding/prolog/l2.pl:2:0: Syntax error: Operator expected
ERROR: /home/dc/c0ding/prolog/l2.pl:5:0: Syntax error: Operator expected
ERROR: /home/dc/c0ding/prolog/l2.pl:28:0: Syntax error: Operator expected
ERROR: /home/dc/c0ding/prolog/l2.pl:94:30: Syntax error: Operator expected
ERROR: /home/dc/c0ding/prolog/l2.pl:99:1: Syntax error: Operator expected
domains
person = symbol.
facts
man(person)
woman(person)
father(person, person)
mother(person, person)
husband(person, person)
wife(person, person)
predicates
%nondeterm
%troyurodnaya_sestra(person, person).
nondeterm
roditel(person, person).
%nondeterm
%svodniy_brat(person, person).
%nondeterm
%sestra(person, person)
clauses
man(anatoly).
man(ivan).
man(fedor).
man(petr).
man(pavel).
man(boris).
man(anton).
man(victor).
man(andrey).
man(vasiliy).
man(sergey).
man(georgiy).
man(mark).
woman(irina).
woman(mariya).
woman(vera).
woman(larisa).
woman(anna).
woman(julia).
woman(marina).
woman(nina).
woman(elena).
woman(lidiya).
woman(oksana).
woman(yelizeta).
woman(kristina).
father(anatoly, fedor).
father(anatoly, anna).
father(anatoly, petr).
father(ivan, pavel).
father(ivan, nina).
father(ivan, marina).
father(petr, anton).
father(petr, elena).
father(pavel, victor).
father(pavel, lidiya).
father(pavel, andrey).
father(boris, vasiliy).
father(anton, yelizeta).
father(andrey, kristina).
father(andrey, sergey).
father(vasiliy, georgiy).
father(vasiliy, mark).
mother(irina, fedor).
mother(irina, petr).
mother(irina, anna).
mother(mariya, pavel).
mother(mariya, marina).
mother(mariya, nina).
mother(vera, anton).
mother(larisa, elena).
mother(anna, victor).
mother(anna, lidiya).
mother(julia, andrey).
mother(nina, vasiliy).
mother(elena, sergey).
mother(lidiya, yelizeta).
mother(oksana, kristina).
mother(oksana, georgiy).
mother(oksana, mark).
roditel(parent, child) :-
mother(parent, child) or
father(parent, child).
goal
mother(vasiliy, mark) or father(vasiliy, mark).
