little boy walking with stick on tracks
a child walking playfully on the train tracks with a stick.
The child is not necessarily walking playfully.
exists s1 x1 x2 x3 x4.(a_topic(x1) & with(x1,x3) & on(x3,x4) & n_track(x4) & n_stick(x3) & n_walking(x1) & of(x1,x2) & n_boy(x2) & a_little(s1) & Theme(s1,x1))
exists e1 e2 s1 x1 x2 x3 x4.(n_train(x3) & with(e2,x4) & n_stick(x4) & Actor(e2,x1) & v_track(e2) & on(e1,x3) & a_playfully(s1) & Manner(e1,s1) & Actor(e1,x2) & v_walk(e1) & (x1 = x2) & n_child(x1))