A baseball player strains to throw a ball.
The player is throwing the ball.
The baseball player is straining to throw the ball.
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 e1 x1 x2.(n_ball(x2) & n_player(x1) & Theme(e1,x2) & Actor(e1,x1) & v_throw(e1))