A vigilant umpire watches the ball with the catcher at the batter swings for a hit.
The umpire watches a ball.
The umpire watches the ball as the batter swing' s for a hit.
exists e1 x1 x2 x3 x4 x5 x6 x7.(n_swing(x5) & of(x5,x6) & n_batter(x6) & n_catcher(x4) & n_ball(x3) & for(e1,x7) & n_hit(x7) & at(e1,x5) & with(e1,x4) & Theme(e1,x3) & Actor(e1,x1) & v_watch(e1) & n_umpire(x1) & of(x1,x2) & n_vigilant(x2))
exists e1 x1 x2.(n_umpire(x1) & Theme(e1,x2) & Actor(e1,x1) & v_watch(e1) & n_ball(x2))