no amount of earnest textbook psychologizing can bridge 
(ROOT (S (NP (NP (DT no) (NN amount)) (PP (IN of) (NP (JJ earnest) (NN textbook) (NN psychologizing)))) (VP (MD can) (VP (VB bridge)))))
(ROOT (S (NP (NP (DT ) (NN )) (PP (IN ) (NP (JJ ) (NN ) (NN )))) (VP (MD ) (VP (VB )))))