There is 6 friends walking down the street.
Six friends are walking on a street.
"Walking on a street" is a rephrasing of "walking down the street."
exists p1 x1 x4.(n_street(x4) & exists e1 x2 x3.((x1 = x2) & down(e1,x4) & Actor(e1,x3) & v_walk(e1) & (x2 = x3) & n_friend(x2) & n_date(x2) & a_date_day_06(x2) & a_date_day_06(x2)))
exists e1 x1 x2.(on(e1,x2) & n_street(x2) & Actor(e1,x1) & v_walk(e1) & n_friend(x1) & card_eq_6(x1))