a dog runs through the long grass.
a puppy runs
The dog is not necessarily a puppy.
exists e1 s1 x1 x2.(n_grass(x2) & a_long(s1) & Theme(s1,x2) & through(e1,x2) & Actor(e1,x1) & v_run(e1) & n_dog(x1))
exists s1 x1.(a_topic(x1) & n_run(x1) & a_puppy(s1) & Theme(s1,x1))