Cheerleaders are on the field cheering.
Cheerleaders are waiting for the game to begin.
Cheerleaders can cheer on a field at any point in a game, not only while they are waiting for the game to begin.
exists p1 x1 x2 x3.(n_cheering(x2) & of(x2,x3) & n_field(x3) & on(x1,x2) & n_cheerleader(x1))
exists e1 p1 x1 x2.(n_game(x2) & Topic(e1,p1) & Actor(e1,x1) & v_wait(e1) & exists e2.(Actor(e2,x2) & v_begin(e2)) & n_cheerleader(x1))