Two small dogs are chasing a ball.
Some puppies are playing with a ball.
Just because they are small does not mean they are puppies.
exists e1 s1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_chase(e1) & n_ball(x2) & n_dog(x1) & a_small(s1) & Theme(s1,x1) & card_eq_2(x1))
exists e1 x1 x2.(with(e1,x2) & n_ball(x2) & Actor(e1,x1) & v_play(e1) & n_puppy(x1))