A man and woman is dancing.
Two people are dancing.
man and woman almost the same as Two people
exists e1 x1 x2 x3.(Actor(e1,x1) & v_dance(e1) & n_woman(x3) & n_man(x2) & subset_of(x3,x1) & subset_of(x2,x1))
exists e1 x1.(Actor(e1,x1) & v_dance(e1) & n_people(x1) & card_eq_2(x1))