A dog in a snowy area.
A dog is chasing a bunny
A dog being in the snow does not mean there is a bunny in the snow too.
exists s1 x1 x2.(a_topic(x1) & in(x1,x2) & n_area(x2) & a_snowy(s1) & Theme(s1,x2) & n_dog(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_chase(e1) & n_bunny(x2) & n_dog(x1))