A dog leaps over a barrier.
The dog is a golden labrador retriever.
Not all dogs are golden labrador retriever.
exists e1 x1 x2.(over(e1,x2) & n_barrier(x2) & Actor(e1,x1) & v_leap(e1) & n_dog(x1))
exists p1 x1.(n_dog(x1) & exists s1 x2 x3.((x1 = x2) & n_retriever(x2) & of(x2,x3) & n_labrador(x3) & a_golden(s1) & Theme(s1,x2)))