Four boys play on a merry-go-round at a park.
Children pushing their parents on a merry-go-round.
Children rather play themselves on merry-go-round than push their parents on it.
exists e1 x1 x2 x3.(at(e1,x3) & n_park(x3) & on(e1,x2) & n_merry-go-round(x2) & Actor(e1,x1) & v_play(e1) & n_boy(x1) & card_eq_4(x1))
exists e1 x1 x2 x3 x4.(a_topic(x1) & on(e1,x4) & n_merry-go-round(x4) & Theme(e1,x3) & Actor(e1,x2) & v_push(e1) & n_parent(x3) & of(x3,x1) & n_thing(x1) & (x1 = x2) & n_child(x1))