Four women sit looking at something beyond the camera.
Nobody is sitting
Four women are different than nobody.
exists e1 e2 x1 x2 x3.(n_camera(x3) & for(e1,e2) & at(e2,x2) & beyond(x2,x3) & n_thing(x2) & Actor(e2,x1) & v_look(e2) & Actor(e1,x1) & v_sit(e1) & n_woman(x1) & card_eq_4(x1))
-exists e1 x1.(Actor(e1,x1) & v_sit(e1) & n_person(x1))