a finely tuned mood piece , a model of menacing atmosphere . 
(ROOT (NP (NP (DT a) (ADJP (RB finely) (VBN tuned)) (NN mood) (NN piece)) (, ,) (NP (NP (DT a) (NN model)) (PP (IN of) (NP (JJ menacing) (NN atmosphere)))) (. .)))
(ROOT (NP (NP (DT ) (ADJP (RB ) (VBN )) (NN ) (NN )) (, ) (NP (NP (DT ) (NN )) (PP (IN ) (NP (JJ ) (NN )))) (. )))