A teenage boy wearing a blue and white uniform playing a form of Hockey.
A boy is competing for a reward.
the teenage boy playing does not imply he is competing for reward.
exists e1 e2 s1 s2 x1 x2 x3 x4 x5 x6 x7.(ne_nam_hockey(x7) & a_topic(x1) & Theme(e2,x4) & Actor(e2,x3) & v_wear(e2) & Theme(e1,x6) & Actor(e1,x5) & v_play(e1) & of(x6,x7) & n_form(x6) & (x4 = x5) & n_uniform(x4) & a_white(s2) & Theme(s2,x4) & a_blue(s1) & Theme(s1,x4) & (x1 = x3) & n_boy(x1) & of(x1,x2) & n_teenage(x2))
exists e1 x1 x2.(for(e1,x2) & n_reward(x2) & Actor(e1,x1) & v_compete(e1) & n_boy(x1))