a man sleeps on a desk.
A man is driving in his car.
A man who sleeps on a desk can not be driving his car.
exists e1 x1 x2.(on(e1,x2) & n_desk(x2) & Actor(e1,x1) & v_sleep(e1) & n_man(x1))
exists e1 x1 x2.(in(e1,x2) & n_car(x2) & of(x2,x1) & n_male(x1) & Actor(e1,x1) & v_drive(e1) & n_man(x1))