Two baseball players including a pitcher on the mound.
A pitcher prepares to throw a curve ball.
A pitcher on the mound doesn't mean he is preparing to throw a curve ball.
exists x1 x2 x3 x4.(n_mound(x4) & a_topic(x1) & include(x1,x3) & on(x3,x4) & n_pitcher(x3) & n_player(x1) & of(x1,x2) & n_baseball(x2) & card_eq_2(x1))
exists e1 p1 x1.(Topic(e1,p1) & Actor(e1,x1) & v_prepare(e1) & exists e2 x2 x3.(Theme(e2,x2) & Actor(e2,x1) & v_throw(e2) & n_ball(x2) & of(x2,x3) & n_curve(x3)) & n_pitcher(x1))