aging , suffering and the prospect of death 
(ROOT (NP (NP (NN aging)) (, ,) (NP (NN suffering)) (CC and) (NP (NP (DT the) (NN prospect)) (PP (IN of) (NP (NN death))))))
(ROOT (NP (NP (NN )) (, ) (NP (NN )) (CC ) (NP (NP (DT ) (NN )) (PP (IN ) (NP (NN ))))))