Two dogs play with a Frisbee.
The two dogs are fighting over a stick
play  is not the same as  fighting, stick  is not the same as  frisbee
exists e1 x1 x2.(with(e1,x2) & n_frisbee(x2) & Actor(e1,x1) & v_play(e1) & n_dog(x1) & card_eq_2(x1))
exists e1 x1 x2.(n_dog(x1) & card_eq_2(x1) & over(e1,x2) & n_stick(x2) & Actor(e1,x1) & v_fight(e1))