A child smiles while playing with his life-size elmo toy.
A boy plays with his christmas present.
the fact that the boy was playing implies that the boy plays.
exists e1 e2 s1 x1 x2 x3.(while(e1,e2) & with(e2,x2) & n_toy(x2) & of(x2,x3) & n_elmo(x3) & a_life-size(s1) & Theme(s1,x2) & of(x2,x1) & n_male(x1) & Actor(e2,x1) & v_play(e2) & Actor(e1,x1) & v_smile(e1) & n_child(x1))
exists e1 s1 x1 x2 x3.(with(e1,x2) & Theme(s1,x3) & a_present(s1) & (x2 = x3) & n_christmas(x2) & of(x2,x1) & n_male(x1) & Actor(e1,x1) & v_play(e1) & n_boy(x1))