A young boy with long hair plays in the water.
A kid is in the water.
A young boy is another way of saying a kid so he is in the water.
exists s1 s2 x1 x2 x3 x4.(n_water(x4) & a_topic(x1) & with(x1,x2) & in(x2,x4) & n_play(x2) & of(x2,x3) & n_hair(x3) & a_long(s2) & Theme(s2,x2) & n_boy(x1) & a_young(s1) & Theme(s1,x1))
exists p1 x1 x2.(n_water(x2) & in(x1,x2) & n_kid(x1))