Three women and a man are lying on the grass.
The people are all women.
There is a man so the people cannot be all women.
exists e1 x1 x2 x3 x4.(n_grass(x4) & on(e1,x4) & Actor(e1,x1) & v_lie(e1) & subset_of(x3,x1) & n_man(x3) & subset_of(x2,x1) & n_woman(x2) & card_eq_3(x2))
exists p1 x1.(n_people(x1) & all x2.(n_woman(x2) -> (x1 = x2)))