A little boy is playing on a playground rocking toy.
a boy playing at a playground at his school
Just because a little boy is playing on a playground rocking toy does not mean the playground is at his school.
exists e2 e1 s1 x1 x2 x3.(on(e1,x2) & n_toy(x2) & Actor(e2,x2) & v_rock(e2) & of(x2,x3) & n_playground(x3) & Actor(e1,x1) & v_play(e1) & n_boy(x1) & a_little(s1) & Theme(s1,x1))
exists x1 x2 x3 x4.(a_topic(x1) & at(x1,x4) & n_school(x4) & of(x4,x1) & n_male(x1) & at(x1,x3) & n_playground(x3) & n_playing(x1) & of(x1,x2) & n_boy(x2))