of russian cultural identity and a stunning technical achievement 
(ROOT (PP (PP (IN of) (NP (JJ russian) (JJ cultural) (NN identity))) (CC and) (NP (DT a) (JJ stunning) (JJ technical) (NN achievement))))
(ROOT (PP (PP (IN ) (NP (JJ ) (JJ ) (NN ))) (CC ) (NP (DT ) (JJ ) (JJ ) (NN ))))