Boy in shorts, face down in shallow, reflective water.
the boy is in shorts
Both sentence are talking about boy in shorts
exists e1 s1 s2 s3 x1 x2 x3 x4.(ne_nam_boy(x1) & in(e1,x4) & n_shallow(x4) & a_down(s3) & Manner(e1,s3) & Theme(e1,x3) & Actor(e1,x1) & v_face(e1) & n_water(x3) & a_reflective(s2) & Theme(s2,x3) & a_,(s1) & Theme(s1,x3) & in(x1,x2) & n_shorts(x2))
exists p1 x1.(n_boy(x1) & exists x2.(in(x1,x2) & n_shorts(x2)))