Two dogs run down the road.
Puppies running down the highway.
Not all dogs are puppies. Not all roads are a highway.
exists e1 x1 x2.(n_road(x2) & down(e1,x2) & Actor(e1,x1) & v_run(e1) & n_dog(x1) & card_eq_2(x1))
exists e1 x1 x2 x3.(n_highway(x3) & a_topic(x1) & down(e1,x3) & Actor(e1,x2) & v_run(e1) & (x1 = x2) & n_puppy(x1))