A man with no shirt is playing tennis.
A man is playing a game with a ball.
A man is playing tennis, which needs a ball.
exists x1.(-exists e1 x2 x3.(Theme(e1,x3) & Actor(e1,x1) & v_play(e1) & n_tennis(x3) & with(x1,x2) & n_shirt(x2)) & n_man(x1))
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & with(x2,x3) & n_ball(x3) & n_game(x2) & n_man(x1))