Two skinny young boys playing with sand in the water.
Two boys play at the beach.
Not all sand and water is at the beach.
exists e1 s1 s2 x1 x2 x3 x4.(n_water(x4) & a_topic(x1) & in(e1,x4) & with(e1,x3) & n_sand(x3) & Actor(e1,x2) & v_play(e1) & (x1 = x2) & n_boy(x1) & a_young(s2) & Theme(s2,x1) & a_skinny(s1) & Theme(s1,x1) & card_eq_2(x1))
exists e1 x1 x2.(n_beach(x2) & at(e1,x2) & Actor(e1,x1) & v_play(e1) & n_boy(x1) & card_eq_2(x1))