A boy is blowing bubbles
A boy plays on a swingset
Blowing is not playing.
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_blow(e1) & n_bubble(x2) & n_boy(x1))
exists e1 x1 x2.(on(e1,x2) & n_swingset(x2) & Actor(e1,x1) & v_play(e1) & n_boy(x1))