Two men sleep in the backseat of a car.
Men were sleeping in the front of a car.
backseat is different than the front
exists e1 x1 x2 x3.(n_backseat(x2) & in(e1,x2) & of(x2,x3) & n_car(x3) & Actor(e1,x1) & v_sleep(e1) & n_man(x1) & card_eq_2(x1))
exists e1 x1 x2 x3.(n_front(x2) & in(e1,x2) & of(x2,x3) & n_car(x3) & Actor(e1,x1) & v_sleep(e1) & n_man(x1))