A young boy is sitting by a pool with an apple in his mouth.
A young boy by the pool.
"Sitting by the pool" is a more specific description of the boy's location by the pool.
exists e1 s1 x1 x2 x3 x4.(with(e1,x3) & in(x3,x4) & n_mouth(x4) & of(x4,x1) & n_male(x1) & n_apple(x3) & by(e1,x2) & n_pool(x2) & Actor(e1,x1) & v_sit(e1) & n_boy(x1) & a_young(s1) & Theme(s1,x1))
exists s1 x1 x2.(n_pool(x2) & a_topic(x1) & by(x1,x2) & n_boy(x1) & a_young(s1) & Theme(s1,x1))