the cheap , graceless , hackneyed sci-fi serials of the '30s and '40s 
(ROOT (NP (NP (DT the) (JJ cheap) (, ,) (JJ graceless) (, ,) (JJ hackneyed) (JJ sci-fi) (NNS serials)) (PP (IN of) (NP (DT the) (NNS '30s) (CC and) (`` ') (NNS 40s)))))
(ROOT (NP (NP (DT ) (JJ ) (, ) (JJ ) (, ) (JJ ) (JJ ) (NNS )) (PP (IN ) (NP (DT ) (NNS ) (CC ) (`` ) (NNS )))))