Two boys are playing in a sprinkler.
Two men are fighting over rights to a waterfall.
There are two boys, not two men. They are playing, not fighting over the rights to a waterfall.
exists e1 x1 x2.(in(e1,x2) & n_sprinkler(x2) & Actor(e1,x1) & v_play(e1) & n_boy(x1) & card_eq_2(x1))
exists e1 x1 x2 x3.(over(e1,x2) & to(x2,x3) & n_waterfall(x3) & n_rights(x2) & Actor(e1,x1) & v_fight(e1) & n_man(x1) & card_eq_2(x1))