one of the year 's best films 
(ROOT (NP (NP (CD one)) (PP (IN of) (NP (NP (DT the) (NN year) (POS 's)) (JJS best) (NNS films)))))
(ROOT (NP (NP (CD )) (PP (IN ) (NP (NP (DT ) (NN ) (POS )) (JJS ) (NNS )))))