People walking down the street.
People are walking toward a football game.
walking toward a football game doesn't always mean  down the street.
exists e1 x1 x2 x3.(n_street(x3) & a_topic(x1) & down(e1,x3) & Actor(e1,x2) & v_walk(e1) & (x1 = x2) & n_people(x1))
exists e1 x1 x2 x3.(toward(e1,x2) & n_game(x2) & of(x2,x3) & n_football(x3) & Actor(e1,x1) & v_walk(e1) & n_people(x1))