A boy climbs rocks.
A boy in blue shorts is playing outside on rocks.
He can wear anything not always blue shorts
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_climb(e1) & n_rock(x2) & n_boy(x1))
exists e1 s1 x1 x2 x3 x4.(on(e1,x4) & n_rock(x4) & Theme(e1,x3) & Actor(e1,x1) & v_play(e1) & n_outside(x3) & in(x1,x2) & n_shorts(x2) & a_blue(s1) & Theme(s1,x2) & n_boy(x1))