Cheerleaders are on the field cheering.
Some football players are practicing a running play.
Cheering and running are two different things.
exists p1 x1 x2 x3.(n_cheering(x2) & of(x2,x3) & n_field(x3) & on(x1,x2) & n_cheerleader(x1))
exists e2 e1 x1 x2 x3.(Theme(e2,x3) & Actor(e2,x1) & v_practice(e2) & n_play(x3) & Actor(e1,x3) & v_run(e1) & n_player(x1) & of(x1,x2) & n_football(x2))