A young boy plays soccer on a grassy field.
There is a boy playing
A boy plays soccer on a field is playing.
exists e1 s1 s2 x1 x2 x3.(on(e1,x3) & n_field(x3) & a_grassy(s2) & Theme(s2,x3) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_soccer(x2) & n_boy(x1) & a_young(s1) & Theme(s1,x1))
exists p1 x1 x2 x3.((x1 = x2) & n_playing(x2) & of(x2,x3) & n_boy(x3))