A baseball player strains to throw a ball.
The players shoulder has been hurting him.
The fact that a baseball player strains to throw a ball doesn't imply that his shoulder has been hurting him.
exists e1 p1 x1 x2.(Topic(e1,p1) & Actor(e1,x1) & v_strain(e1) & exists e2 x3.(Theme(e2,x3) & Actor(e2,x1) & v_throw(e2) & n_ball(x3)) & n_player(x1) & of(x1,x2) & n_baseball(x2))
exists p1 x1.(n_male(x1) & n_player(x1) & a_topic(x1) & exists e1 x2.(Theme(e1,x1) & Actor(e1,x2) & v_hurt(e1) & n_shoulder(x2)) & that(x1,p1))