Kids at a park play on a basketball court.
Kids sitting and eating lunch.
Kids can't be sitting and eating lunch while they play on a basketball court.
exists x1 x2 x3 x4 x5.(a_topic(x1) & at(x1,x2) & on(x2,x4) & n_court(x4) & of(x4,x5) & n_basketball(x5) & n_play(x2) & of(x2,x3) & n_park(x3) & n_kid(x1))
exists e1 e2 x1 x2 x3.(Theme(e2,x3) & Actor(e2,x2) & v_eat(e2) & n_lunch(x3) & n_kid(x2) & Actor(e1,x1) & v_sit(e1) & n_kid(x1))