A bunch of football players, and a crowd.
Football players talking to a crowd.
Football players and a crowd does not imply that they are talking.
exists x1 x2 x3 x4 x5.(a_topic(x1) & of(x1,x2) & subset_of(x5,x2) & n_crowd(x5) & subset_of(x3,x2) & n_player(x3) & of(x3,x4) & n_football(x4) & n_bunch(x1))
exists e1 x1 x2 x3 x4.(a_topic(x1) & to(e1,x4) & n_crowd(x4) & Actor(e1,x3) & v_talk(e1) & (x1 = x3) & n_player(x1) & of(x1,x2) & n_football(x2))