premise: The basketball player in red is challenging the player in white for the ball.
hypothesis: A basketball player in red is trying to grab the ball from a player in white.
explanation_1: You challenge someone if you try to grab a ball from them.
explanation_2: If the player is challenging another player, it stands to reason the player will try to grab the ball.
explanation_3: A player trying to grab the ball from another player is challenging him.
premise_logic: exists e1 s1 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) & Theme(s1,x5) & a_white(s1) & (x4 = x5) & in(x1,x3) & n_red(x3))
hypothesis_logic: exists e1 p1 x1 x2 x3 x4.(n_ball(x4) & Topic(e1,p1) & Actor(e1,x1) & v_try(e1) & exists e2 s1 x5 x6.(Theme(e2,x4) & Actor(e2,x1) & v_grab(e2) & from(x4,x5) & Theme(s1,x6) & a_white(s1) & (x5 = x6) & n_player(x5)) & in(x1,x3) & n_red(x3) & n_player(x1) & of(x1,x2) & n_basketball(x2))