A white and black dog wrestle together.
The animals which are wrestling are cats.
The animals can either be dogs or cats.
exists s1 s2 x1 x2.(a_topic(x1) & r_together(x1) & n_wrestle(x1) & of(x1,x2) & n_dog(x2) & a_black(s2) & Theme(s2,x1) & a_white(s1) & Theme(s1,x1))
exists e1 p1 x1 x2.(n_animal(x1) & exists x3.((x1 = x3) & n_cat(x3)) & Actor(e1,x2) & v_wrestle(e1) & (x1 = x2))