that contains some hefty thematic material on time , death , eternity , and what 
(ROOT (S (NP (DT that)) (VP (VBZ contains) (NP (NP (DT some) (JJ hefty) (JJ thematic) (NN material)) (PP (IN on) (NP (NN time) (, ,) (NN death) (, ,) (NN eternity) (, ,) (CC and) (WP what)))))))
(ROOT (S (NP (DT )) (VP (VBZ ) (NP (NP (DT ) (JJ ) (JJ ) (NN )) (PP (IN ) (NP (NN ) (, ) (NN ) (, ) (NN ) (, ) (CC ) (WP )))))))