The boy is playing with a colorful ribbon.
The boy is twirling the colorful ribbon in a competition.
Just because the boy is playing with the ribbon does not mean that he is twirling the ribbon. Just because the boy is playing with a ribbon does not mean he is in a completion.
exists e1 s1 x1 x2.(n_boy(x1) & with(e1,x2) & n_ribbon(x2) & a_colorful(s1) & Theme(s1,x2) & Actor(e1,x1) & v_play(e1))
exists e1 s1 x1 x2 x3.(n_ribbon(x2) & a_colorful(s1) & Theme(s1,x2) & n_boy(x1) & Theme(e1,x2) & Actor(e1,x1) & v_twirl(e1) & in(x2,x3) & n_competition(x3))