Полианну почитайте http://www.erlib.com/%D0%AD%D0%BB%D0%B8%D0%BD%D0%BE%D1%80_%D0%9F%D0%BE%D1%80%D1%82%D0%B5%D1%80/%D0%9F%D0%BE%D0%BB%D0%BB%D0%B8%D0%B0%D0%BD%D0%BD%D0%B0/0/