father( nancy, steve ).
father( lucy, roger ).
father( susan, peter ).
father( mary, peter ).
father( les, chris ).

mother( roger, nicole ).
mother( peter, nicole ).
mother( nancy, tina ).
mother( vicky, tina ).
mother( lucy, darla ).
mother( mary, dolly ).
mother( susan, nancy ).
mother( george, vicky ).
mother( thomas, vicky ).
mother( les, susan ).
mother( terry, mary ).
mother( kim, mary ).
mother( ann, mary ).

party_preference( nicole, republican ).
party_preference( steve, republican ).
party_preference( tina, democrat ).
party_preference( darla, libertarian ).
party_preference( roger, democrat ).
party_preference( peter, republican ).
party_preference( nancy, republican ).
party_preference( vicky, democrat ).
party_preference( dolly, democrat ).
party_preference( lucy, libertarian ).
party_preference( mary, republican ).
party_preference( susan, libertarian ).
party_preference( chris, libertarian ).

vote( nicole, libertarian, 1988 ).
vote( nicole, libertarian, 1984 ).
vote( nicole, libertarian, 1980 ).
vote( steve, republican, 1988 ).
vote( tina, republican, 1988 ).
vote( tina, democrat, 1984 ).
vote( darla, libertarian, 1988 ).
vote( darla, libertarian, 1984 ).
vote( darla, libertarian, 1980 ).
vote( lucy, libertarian, 1988 ).
vote( lucy, libertarian, 1984 ).
vote( lucy, libertarian, 1980 ).
vote( dolly, democrat, 1984 ).
vote( nancy, democrat, 1988 ).
vote( nancy, democrat, 1984 ).
vote( vicky, libertarian, 1988 ).
vote( mary, democrat, 1988 ).
vote( mary, democrat, 1984 ).
vote( susan, libertarian, 1984 ).
vote( chris, libertarian, 1988 ).
vote( chris, libertarian, 1988 ).
vote( chris, libertarian, 1984 ).
vote( thomas, libertarian, 1988 ).
vote( ann, libertarian, 1988 ).
vote( ann, libertarian, 1984 ).

dominant_friend( roger, nicole ).
dominant_friend( tina, steve ).
dominant_friend( dolly, peter ).
dominant_friend( mary, peter ).
dominant_friend( peter, nancy ).
dominant_friend( nancy, vicky ).
dominant_friend( kim, ann ).
dominant_friend( terry, ann ).
dominant_friend( les, george ).
dominant_friend( george, thomas ).

date( 1992 ).