A jumping black dog.
The dog is jumping.
The black dog jumping is also a dog, calling it a black dog is just more descriptive.
exists e1 s1 x1.(a_topic(x1) & n_dog(x1) & a_black(s1) & Theme(s1,x1) & Actor(e1,x1) & v_jump(e1))
exists e1 x1.(n_dog(x1) & Actor(e1,x1) & v_jump(e1))