A football player being tackled from behind by another player from a different team in front of a crowd.
A quarterback is being tackled by the opposing teams linebacker.
Another player does not mean it is the opposing teams linebacker.
exists e1 x1 x2 x3 x4 x5 x6 x7 x8 x9.(n_team(x7) & a_topic(x1) & Actor(e1,x5) & from(x5,x6) & in(x6,x8) & of(x8,x9) & n_crowd(x9) & n_front(x8) & -(x6 = x7) & n_team(x6) & n_player(x5) & -(x5 = x1) & n_player(x1) & n_player(x1) & from(e1,x4) & n_behind(x4) & Theme(e1,x3) & v_tackle(e1) & (x1 = x3) & of(x1,x2) & n_football(x2))
exists e1 s1 x1 x2 x3.(n_team(x2) & a_opposing(s1) & Theme(s1,x2) & Actor(e1,x2) & Time(x2,x3) & n_linebacker(x3) & Theme(e1,x1) & v_tackle(e1) & n_quarterback(x1))