A football player in possession of the ball gets tackled by a football player on the opposing team.
People are playing football.
A football player and one other football player on the opposing team are the people and they are in possession of the ball shows that they are playing football.
exists e1 p1 s1 x1 x2 x3 x4 x7.(n_team(x7) & a_opposing(s1) & Theme(s1,x7) & n_ball(x4) & exists e2 x5 x6.(Actor(e2,x5) & on(x5,x7) & n_player(x5) & of(x5,x6) & n_football(x6) & Theme(e2,x1) & v_tackle(e2)) & Topic(e1,p1) & Actor(e1,x1) & v_get(e1) & in(x1,x3) & of(x3,x4) & n_possession(x3) & n_player(x1) & of(x1,x2) & n_football(x2))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_football(x2) & n_people(x1))