a man is underwater sitting at the bottom of the pool
The man is laying on a pool float on top of the water.
To float underwater is impossible.
exists e1 p1 x1 x2 x3.(n_pool(x3) & n_bottom(x2) & exists e2.(at(e2,x2) & of(x2,x3) & Actor(e2,x1) & v_sit(e2)) & Topic(e1,p1) & Actor(e1,x1) & v_underwater(e1) & n_man(x1))
exists e1 x1 x2 x3 x4 x5.(n_water(x5) & n_man(x1) & on(e1,x2) & on(x2,x4) & of(x4,x5) & n_top(x4) & n_float(x2) & of(x2,x3) & n_pool(x3) & Actor(e1,x1) & v_lay(e1))