Men, women and children dance at a party.
One guy dances by himself in his living room.
Men, women and children are multiple people, together. In sentence two there is only one guy.
exists x1 x2 x3 x4 x5 x6.(a_topic(x1) & rel(x1,x2) & subset_of(x4,x2) & at(x4,x6) & n_party(x6) & n_dance(x4) & of(x4,x5) & n_child(x5) & subset_of(x3,x2) & n_woman(x3) & n_man(x1))
exists x1 x2 x3 x4 x5.(a_topic(x3) & in(x3,x4) & n_room(x4) & of(x4,x5) & n_living(x5) & of(x4,x1) & n_male(x1) & n_male(x1) & Time(x3,x1) & n_dance(x1) & n_guy(x3) & card_eq_1(x3) & by(x2,x1) & n_guy(x2) & card_eq_1(x2))