Four dogs run in a field.
Some animals are playing with a ball.
Running in a field is not necessarily playing with a ball.
exists e1 x1 x2.(in(e1,x2) & n_field(x2) & Theme(e1,x1) & v_run(e1) & n_dog(x1) & card_eq_4(x1))
exists e1 x1 x2.(with(e1,x2) & n_ball(x2) & Actor(e1,x1) & v_play(e1) & n_animal(x1))