A man hits a tennis ball during a professional match.
A man hit the ball during the tennis competition.
man hits a tennis ball implies same as man hit the ball
exists e1 s1 x1 x2 x3 x4.(during(e1,x4) & n_match(x4) & a_professional(s1) & Theme(s1,x4) & Theme(e1,x2) & Actor(e1,x1) & v_hit(e1) & n_ball(x2) & of(x2,x3) & n_tennis(x3) & n_man(x1))
exists e1 x1 x2 x3 x4.(n_competition(x3) & of(x3,x4) & n_tennis(x4) & n_ball(x2) & during(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_hit(e1) & n_man(x1))