A boy on a chained swing looks to the right and smiles.
A boy plays on a swing
If the boy is on a chained swing, this is usually in a park environment, where children often play. Therefore he is probably playing on the swing.
exists e1 s1 x1 x2 x3 x4 x5.(n_smile(x5) & n_right(x4) & subset_of(x5,x3) & subset_of(x4,x3) & to(e1,x3) & Actor(e1,x1) & v_look(e1) & on(x1,x2) & n_swing(x2) & a_chained(s1) & Theme(s1,x2) & n_boy(x1))
exists e1 x1 x2.(on(e1,x2) & n_swing(x2) & Actor(e1,x1) & v_play(e1) & n_boy(x1))