Black dog is submissive on ground to brown dog.
A worm on a hook.
A black dog is not a worm on a hook.
exists s1 s2 x1 x2 x3 x4.(on(s1,x3) & to(x3,x4) & n_dog(x4) & a_brown(s2) & Theme(s2,x4) & n_ground(x3) & Theme(s1,x1) & a_submissive(s1) & n_dog(x1) & (x1 = x2) & ne_nam_black(x2))
exists x1 x2.(a_topic(x1) & on(x1,x2) & n_hook(x2) & n_worm(x1))