Men are playing with a volleyball in a pool.
There are men in a pool.
The men have to be in the pool to play volleyball in the pool.
exists e1 x1 x2 x3.(in(e1,x3) & n_pool(x3) & with(e1,x2) & n_volleyball(x2) & Actor(e1,x1) & v_play(e1) & n_man(x1))
exists p1 x1 x2.(in(p1,x2) & n_pool(x2) & exists x3.((x1 = x3) & n_man(x3)))