all the pieces fall together without much surprise , but 
(ROOT (S (S (NP (PDT all) (DT the) (NNS pieces)) (VP (VBP fall) (ADVP (RB together)) (PP (IN without) (NP (JJ much) (NN surprise))))) (, ,) (CC but)))
(ROOT (S (S (NP (PDT ) (DT ) (NNS )) (VP (VBP ) (ADVP (RB )) (PP (IN ) (NP (JJ ) (NN ))))) (, ) (CC )))