Four children playing in a pool.
Kids are on the swings at the park.
If the children are in a pool, they are not on the swings.
exists e1 x1 x2 x3.(a_topic(x1) & in(e1,x3) & n_pool(x3) & Actor(e1,x2) & v_play(e1) & (x1 = x2) & n_child(x1) & card_eq_4(x1))
exists p1 x1 x2 x3.(n_park(x2) & n_swing(x3) & at(p1,x2) & on(x1,x3) & n_kid(x1))