Two men and two women in the kitchen with wine and snacks.
There are no women
THERE CANNOT BE TWO WOMEN IF THERE ARE NO WOMEN
exists s1 x1 x2 x3 x4 x5 x6.(n_kitchen(x3) & a_topic(s1) & in(s1,x3) & with(x3,x4) & subset_of(x6,x4) & n_snack(x6) & subset_of(x5,x4) & n_wine(x5) & n_woman(x2) & card_eq_2(x2) & n_man(x1) & subset_of(x2,s1) & subset_of(x1,s1) & card_eq_2(s1))
exists p1 x1.-exists x2.((x1 = x2) & n_woman(x2))