an almost palpable sense of intensity 
(ROOT (NP (NP (DT an) (ADJP (RB almost) (JJ palpable)) (NN sense)) (PP (IN of) (NP (NN intensity)))))
(ROOT (NP (NP (DT ) (ADJP (RB ) (JJ )) (NN )) (PP (IN ) (NP (NN )))))