A couple of men playing pool.
Mens are playing in a pool with a ball.
Not every men playing pool have a ball.
exists e1 x1 x2 x3 x4.(a_topic(x1) & Theme(e1,x4) & Actor(e1,x3) & v_play(e1) & n_pool(x4) & (x1 = x3) & of(x1,x2) & n_man(x2) & n_couple(x1))
exists e1 x1 x2 x3.(with(e1,x3) & n_ball(x3) & in(e1,x2) & n_pool(x2) & Actor(e1,x1) & v_play(e1) & n_men(x1))