Large dog running in the field.
A dog chasing something.
Just because a large dog is running in the field, does not mean the dog is chasing something.
exists e1 s1 x1 x2 x3.(n_field(x3) & a_topic(x1) & in(e1,x3) & Actor(e1,x2) & v_run(e1) & (x1 = x2) & n_dog(x1) & a_large(s1) & Theme(s1,x1))
exists s1 x1 x2 x3.(a_topic(x1) & n_something(x1) & a_.(s1) & Theme(s1,x1) & of(x1,x3) & n_chasing(x3) & of(x1,x2) & n_dog(x2))