A baseball player (not the pitcher) is winding up to throw the ball to another player.
The umpire is tossing the ball to the pitcher.
tossing a ball and throwing a ball is not possible at same time
exists x1 x2 x3 x4.(n_ball(x4) & n_pitcher(x3) & -exists e1 p1 s1.(a_up(s1) & Manner(e1,s1) & Topic(e1,p1) & Actor(e1,x1) & v_wind(e1) & exists e2 x5.(to(e2,x5) & n_player(x5) & -(x5 = x1) & Theme(e2,x4) & Actor(e2,x1) & v_throw(e2)) & rel(x1,x3)) & n_player(x1) & n_player(x1) & of(x1,x2) & n_baseball(x2))
exists e1 x1 x2 x3.(n_pitcher(x3) & n_ball(x2) & n_umpire(x1) & Theme(e1,x2) & Actor(e1,x1) & v_toss(e1) & to(x2,x3))