A black dog tugs on a rope.
The dog is having fun.
The dog could be trying to pull something for work and we can't really tell if it's having fun.
exists s1 x1 x2 x3.(a_topic(x1) & on(x1,x3) & n_rope(x3) & n_tug(x1) & of(x1,x2) & n_dog(x2) & a_black(s1) & Theme(s1,x1))
exists e1 x1 x2.(n_dog(x1) & Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & n_fun(x2))