a young boy in a pool playing with a green water gun
A kid in an above ground pool is playing.
It could be an in-ground pool, not an above ground pool.
exists s1 s2 x1 x2 x3 x4 x5.(a_topic(x1) & in(x1,x2) & with(x2,x4) & n_gun(x4) & of(x4,x5) & n_water(x5) & a_green(s2) & Theme(s2,x4) & n_playing(x2) & of(x2,x3) & n_pool(x3) & n_boy(x1) & a_young(s1) & Theme(s1,x1))
exists e1 s1 x1 x2 x3.(Actor(e1,x1) & v_play(e1) & in(x1,x2) & n_pool(x2) & of(x2,x3) & n_ground(x3) & a_above(s1) & Theme(s1,x2) & n_kid(x1))