A young child plays on a play set.
A young child is playing.
The child is on a play set; therefore he is playing.
exists e1 s1 x1 x2 x3.(on(e1,x3) & n_play(x3) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_set(x2) & n_child(x1) & a_young(s1) & Theme(s1,x1))
exists e1 s1 x1.(Actor(e1,x1) & v_play(e1) & n_child(x1) & a_young(s1) & Theme(s1,x1))