A man on a horse chasing an animal.
The man is trying to reign in cattle.
Because a man on a horse is chasing an animal, does not mean that the man is trying to reign in cattle.
exists e1 x1 x2 x3 x4.(a_topic(x1) & on(x1,x2) & Theme(e1,x4) & Actor(e1,x3) & v_chase(e1) & n_animal(x4) & (x2 = x3) & n_horse(x2) & n_man(x1))
exists e1 p1 x1.(n_man(x1) & Topic(e1,p1) & Actor(e1,x1) & v_try(e1) & exists e2 x2.(in(e2,x2) & n_cattle(x2) & Actor(e2,x1) & v_reign(e2)))