The man is pitching a baseball on a dirt mound.
A man is pitching a cricket ball.
both men are pitching but one is a cricket ball and one is a baseball
exists e1 x1 x2 x3 x4.(n_man(x1) & Theme(e1,x2) & Actor(e1,x1) & v_pitch(e1) & on(x2,x3) & n_mound(x3) & of(x3,x4) & n_dirt(x4) & n_baseball(x2))
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_pitch(e1) & n_ball(x2) & of(x2,x3) & n_cricket(x3) & n_man(x1))