a fine , understated piece of filmmaking 
(ROOT (NP (NP (DT a) (JJ fine) (, ,) (JJ understated) (NN piece)) (PP (IN of) (NP (NN filmmaking)))))
(ROOT (NP (NP (DT ) (JJ ) (, ) (JJ ) (NN )) (PP (IN ) (NP (NN )))))