Two woman are riding on an escalator.
Woman are riding an elevator.
An escalator is different from an elevator.
exists e1 x1 x2.(on(e1,x2) & n_escalator(x2) & Actor(e1,x1) & v_ride(e1) & n_woman(x1) & card_eq_2(x1))
exists e1 x1 x2.(ne_nam_woman(x1) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_elevator(x2))