The basketball player in blue is challenging the player in orange for the ball.
The top team players are competing.
Top team players often are in the midst of the action, so as the blue player challenges the orange player, it's true that they're competing.
exists e1 x1 x2 x3 x4 x5 x6.(n_ball(x6) & n_player(x4) & n_player(x1) & of(x1,x2) & n_basketball(x2) & for(e1,x6) & Theme(e1,x4) & Actor(e1,x1) & v_challenge(e1) & in(x4,x5) & n_orange(x5) & in(x1,x3) & n_blue(x3))
exists e1 s1 x1 x2.(n_player(x1) & of(x1,x2) & n_team(x2) & a_top(s1) & Theme(s1,x1) & Actor(e1,x1) & v_compete(e1))