a dull , somnambulant exercise in pretension whose pervasive quiet is broken by frequent outbursts of violence and noise . 
(ROOT (NP (NP (NP (DT a) (JJ dull) (, ,) (JJ somnambulant) (NN exercise)) (PP (IN in) (NP (NN pretension)))) (SBAR (WHNP (WP$ whose) (JJ pervasive) (NN quiet)) (S (VP (VBZ is) (VP (VBN broken) (PP (IN by) (NP (NP (JJ frequent) (NNS outbursts)) (PP (IN of) (NP (NN violence) (CC and) (NN noise))))))))) (. .)))
(ROOT (NP (NP (NP (DT ) (JJ ) (, ) (JJ ) (NN )) (PP (IN ) (NP (NN )))) (SBAR (WHNP (WP$ ) (JJ ) (NN )) (S (VP (VBZ ) (VP (VBN ) (PP (IN ) (NP (NP (JJ ) (NNS )) (PP (IN ) (NP (NN ) (CC ) (NN ))))))))) (. )))