A little league pitcher is throwing the ball
A boy throws a ball.
A little league pitcher is throwing the ball which at the same time wont be A boy throws a ball.
exists e1 s1 x1 x2 x3.(n_ball(x3) & Theme(e1,x3) & Actor(e1,x1) & v_throw(e1) & n_pitcher(x1) & of(x1,x2) & n_league(x2) & a_little(s1) & Theme(s1,x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_throw(e1) & n_ball(x2) & n_boy(x1))