A teenage boy hits a tennis ball with a racket.
The teenage boy is swinging a racket.
If the teenage boy is swinging a racket then he has the ability to hit the tennis ball with a racket.
exists e1 x1 x2 x3 x4 x5.(with(e1,x5) & n_racket(x5) & Theme(e1,x3) & Actor(e1,x1) & v_hit(e1) & n_ball(x3) & of(x3,x4) & n_tennis(x4) & n_boy(x1) & of(x1,x2) & n_teenage(x2))
exists e1 x1 x2 x3.(n_boy(x1) & of(x1,x2) & n_teenage(x2) & Theme(e1,x3) & Actor(e1,x1) & v_swing(e1) & n_racket(x3))