Children hang on a wall next to water.
Children interact with a wall.
Hang is interact with
exists x1 x2 x3 x4 x5.(a_topic(x1) & on(x1,x3) & to(x4,x5) & n_water(x5) & next(x3,x4) & n_thing(x4) & n_wall(x3) & n_hang(x1) & (x1 = x2) & ne_nam_children(x2))
exists x1 x2 x3.(a_topic(x1) & with(x1,x3) & n_wall(x3) & n_interact(x1) & (x1 = x2) & ne_nam_children(x2))