Two young child stand on the rocks near the edge of the water.
Two children stand on dangerous rocks.
All rocks are not dangerous to stand on.
exists s1 x1 x2 x3 x4 x5.(n_water(x5) & n_edge(x4) & n_rock(x3) & a_topic(x1) & near(x1,x4) & of(x4,x5) & on(x1,x3) & n_stand(x1) & of(x1,x2) & n_child(x2) & a_young(s1) & Theme(s1,x1) & card_eq_2(x1))
exists e1 s1 x1 x2.(on(e1,x2) & n_rock(x2) & a_dangerous(s1) & Theme(s1,x2) & Actor(e1,x1) & v_stand(e1) & n_child(x1) & card_eq_2(x1))