During a game of rugby, a man tackles another.
Two teams play a game of rugby.
A man who tackles another means two teams are playing.
exists e1 x1 x2 x3 x4.(during(e1,x3) & of(x3,x4) & n_rugby(x4) & n_game(x3) & Theme(e1,x2) & Actor(e1,x1) & v_tackle(e1) & n_thing(x2) & n_man(x1))
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & of(x2,x3) & n_rugby(x3) & n_game(x2) & n_team(x1) & card_eq_2(x1))