A black and white dog jumping to catch a ball.
A dog is playing fetch.
Just because a dog catch a ball doesn't mean it's playing fetch.
exists e1 p1 s1 s2 x1 x2.(a_topic(x1) & Topic(e1,p1) & Actor(e1,x2) & v_jump(e1) & exists e2 x3.(Theme(e2,x3) & Actor(e2,x2) & v_catch(e2) & n_ball(x3)) & (x1 = x2) & n_dog(x1) & a_white(s2) & Theme(s2,x1) & a_black(s1) & Theme(s1,x1))
exists e1 s1 x1.(a_fetch(s1) & Manner(e1,s1) & Actor(e1,x1) & v_play(e1) & n_dog(x1))