A little boy smiling next to a toy train track on the floor with his sister neat the couch build the rest of the track.
A boy is happy
Just because someone is smiling doesn't mean they are happy.
exists e1 e2 s1 x1 x2 x3 x4 x5 x6 x7 x8 x9 x10.(n_rest(x10) & n_neat(x7) & of(x7,x8) & n_sister(x8) & of(x7,x6) & n_male(x6) & n_floor(x6) & Theme(e2,x10) & Actor(e2,x1) & v_build(e2) & of(x10,x3) & n_track(x3) & n_track(x3) & to(e1,x3) & on(x3,x6) & with(x6,x7) & n_couch(x9) & (x7 = x9) & of(x3,x5) & n_train(x5) & of(x3,x4) & n_toy(x4) & r_next(e1) & Actor(e1,x2) & v_smile(e1) & (x1 = x2) & n_boy(x1) & a_little(s1) & Theme(s1,x1))
exists s1 x1.(Theme(s1,x1) & a_happy(s1) & n_boy(x1))