Uniformed athletes dive onto a grassy playing field.
Football players training for a game.
Just because there are uniformed athletes diving onto a grassy playing field doesn't mean that they are football players training for a game. The uniformed athletes are not necessarily football players.  The athletes might not be training for a game.
exists s1 s2 x1 x2 x3 x4.(a_topic(x1) & onto(x1,x3) & n_field(x3) & of(x3,x4) & n_playing(x4) & a_grassy(s2) & Theme(s2,x3) & n_dive(x1) & of(x1,x2) & n_athlete(x2) & a_uniformed(s1) & Theme(s1,x1))
exists x1 x2 x3 x4.(a_topic(x1) & for(x1,x4) & n_game(x4) & n_training(x1) & of(x1,x3) & n_player(x3) & of(x1,x2) & n_football(x2))