is an exercise not in biography but in hero worship . 
(ROOT (S (VP (VBZ is) (NP (NP (DT an) (NN exercise)) (PP (RB not) (PP (IN in) (NP (NN biography))) (CC but) (PP (IN in) (NP (NN hero) (NN worship)))))) (. .)))
(ROOT (S (VP (VBZ ) (NP (NP (DT ) (NN )) (PP (RB ) (PP (IN ) (NP (NN ))) (CC ) (PP (IN ) (NP (NN ) (NN )))))) (. )))