Four boys playing on a merry-go-round in a park.
One boy is about to fall off the merry-go-round.
It is not know if there is a boy about to fall off of the ride.
exists e1 x1 x2 x3 x4.(a_topic(x1) & in(e1,x4) & n_park(x4) & on(e1,x3) & n_merry-go-round(x3) & Actor(e1,x2) & v_play(e1) & (x1 = x2) & n_boy(x1) & card_eq_4(x1))
exists p1 s1 x1 x2.(n_merry-go-round(x2) & Topic(s1,p1) & Actor(s1,x1) & a_about(s1) & exists e1 s2.(Time(e1,x2) & a_off(s2) & Manner(e1,s2) & Actor(e1,x1) & v_fall(e1)) & n_boy(x1) & card_eq_1(x1))