A dog jumping through a ring.
There is a cat leaping through something.
Sentence two can not be about a cat if sentence one was about a dog
exists e1 x1 x2 x3.(a_topic(x1) & through(e1,x3) & n_ring(x3) & Actor(e1,x2) & v_jump(e1) & (x1 = x2) & n_dog(x1))
exists p1 x1 e1 x2 x3 x4.((x1 = x2) & through(e1,x4) & n_thing(x4) & Actor(e1,x3) & v_leap(e1) & (x2 = x3) & n_cat(x2))