One man is jumping into the water, while the other is watching.
Brothers are by the water
You can not infer they are by the water.
exists e1 p1 x1 x2 x3.(n_other(x3) & n_water(x2) & exists e2.(Actor(e2,x3) & v_watch(e2)) & while(e1,p1) & into(e1,x2) & Actor(e1,x1) & v_jump(e1) & n_man(x1) & card_eq_1(x1))
exists p1 x1 x2.(n_water(x2) & ne_org_brothers(x1) & by(x1,x2))