Two guys at a bar one dark-skinned and one light-skinned.
Two women at a bar drink beer and celebrate.
Guys are not same as women.
exists s1 x1 x2 x3 x4 x5.(a_topic(x1) & at(x1,x2) & n_thing(x4) & card_eq_1(x4) & n_dark-skinned(x3) & card_eq_1(x3) & of(x3,x5) & n_bar(x5) & subset_of(x4,x2) & subset_of(x3,x2) & a_light-skinned(s1) & Theme(s1,x2) & n_guy(x1) & card_eq_2(x1))
exists x1 x2 x3 x4 x5 x6.(a_topic(x1) & at(x1,x2) & n_celebrate(x4) & n_beer(x3) & of(x3,x6) & n_drink(x6) & of(x3,x5) & n_bar(x5) & subset_of(x4,x2) & subset_of(x3,x2) & n_woman(x1) & card_eq_2(x1))