A small boy with a grin on his face playing with a pipe.
a boy is playing a pipe
The boy playing a pipe part of their description of the boy being small.
exists s1 x1 x2 x3 x4 x5.(a_topic(x1) & with(x1,x2) & on(x2,x3) & with(x3,x5) & n_pipe(x5) & n_playing(x3) & of(x3,x4) & n_face(x4) & of(x3,x1) & n_male(x1) & n_grin(x2) & n_boy(x1) & a_small(s1) & Theme(s1,x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_pipe(x2) & n_boy(x1))