A horse bucking wildly
A cow is eating a horse.
A cow and a horse are different animals. An animal cannot be bucking and eating at the same time. Cows are herbivores.
exists x1 x2.(a_topic(x1) & r_wildly(x1) & n_bucking(x1) & of(x1,x2) & n_horse(x2))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_eat(e1) & n_horse(x2) & n_cow(x1))