one of the best , most understated performances of ( jack nicholson 's ) career . 
(ROOT (NP (NP (CD one)) (PP (IN of) (NP (NP (DT the) (JJS best) (, ,) (ADJP (RBS most) (JJ understated)) (NNS performances)) (PP (IN of) (NP (-LRB- -LRB-) (NP (NNP jack) (NNP nicholson) (POS 's)) (-RRB- -RRB-) (NN career))))) (. .)))
(ROOT (NP (NP (CD )) (PP (IN ) (NP (NP (DT ) (JJS ) (, ) (ADJP (RBS ) (JJ )) (NNS )) (PP (IN ) (NP (-LRB- ) (NP (NNP ) (NNP ) (POS )) (-RRB- ) (NN ))))) (. )))