There is a dog humping a young girl.
The girl is the dog's owner.
A girl being humped by a dog is not assumed to be the dog's owner.
exists p1 x1 e1 s1 x2 x3 x4.((x1 = x2) & Theme(e1,x4) & Actor(e1,x3) & v_hump(e1) & n_girl(x4) & a_young(s1) & Theme(s1,x4) & (x2 = x3) & n_dog(x2))
exists p1 x1 x2 x3.(n_owner(x3) & of(x3,x2) & n_dog(x2) & n_girl(x1) & (x1 = x3))