Young boys playing ball on the beach.
The children are on a basketball court.
the boys cannot be on the beach or a basketball court at the same time
exists e1 s1 x1 x2 x3 x4.(n_beach(x4) & a_topic(x1) & on(e1,x4) & Theme(e1,x3) & Actor(e1,x2) & v_play(e1) & n_ball(x3) & (x1 = x2) & n_boy(x1) & a_young(s1) & Theme(s1,x1))
exists p1 x1.(n_child(x1) & exists x2 x3.(on(x1,x2) & n_court(x2) & of(x2,x3) & n_basketball(x3)))