A man and woman are playing on a subway.
The man and woman are in love
Not all men and woman playing are in love.
exists e1 x1 x2 x3 x4.(on(e1,x4) & n_subway(x4) & Actor(e1,x1) & v_play(e1) & n_woman(x3) & n_man(x2) & subset_of(x3,x1) & subset_of(x2,x1))
exists p1 x1 x2 x3.(n_woman(x3) & n_man(x2) & subset_of(x3,x1) & subset_of(x2,x1) & exists x4.(in(x1,x4) & n_love(x4)))