A baseball pitcher is about to throw the ball.
Person about to throw a ball.
If a baseball pitcher prepares to throw then a person is about to throw a ball.
exists p1 s1 x1 x2 x3.(n_ball(x3) & Topic(s1,p1) & Actor(s1,x1) & a_about(s1) & exists e1.(Theme(e1,x3) & Actor(e1,x1) & v_throw(e1)) & n_pitcher(x1) & of(x1,x2) & n_baseball(x2))
exists p1 s1 x1 x2.(a_topic(x1) & Topic(s1,p1) & Actor(s1,x2) & a_about(s1) & exists e1 x3.(Theme(e1,x3) & Actor(e1,x2) & v_throw(e1) & n_ball(x3)) & (x1 = x2) & n_person(x1))