A young kid is standing up on the merry-go-round.
A child standing.
Both subjects are standing
exists e1 s1 s2 x1 x2.(n_merry-go-round(x2) & on(e1,x2) & a_up(s2) & Manner(e1,s2) & Actor(e1,x1) & v_stand(e1) & n_kid(x1) & a_young(s1) & Theme(s1,x1))
exists x1 x2.(a_topic(x1) & n_standing(x1) & of(x1,x2) & n_child(x2))