A boy is riding down a bounce slide.
A boy is swinging on a swingset.
Swinging and riding are different.
exists e1 s1 x1 x2 x3.(a_down(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_slide(x2) & of(x2,x3) & n_bounce(x3) & n_boy(x1))
exists e1 x1 x2.(on(e1,x2) & n_swingset(x2) & Actor(e1,x1) & v_swing(e1) & n_boy(x1))