the sum of all fears pretends to be a serious exploration of nuclear terrorism , but it 's really nothing more than warmed-over cold war paranoia . 
(ROOT (S (S (NP (NP (DT the) (NN sum)) (PP (IN of) (NP (DT all) (NNS fears)))) (VP (VBZ pretends) (S (VP (TO to) (VP (VB be) (NP (NP (DT a) (JJ serious) (NN exploration)) (PP (IN of) (NP (JJ nuclear) (NN terrorism))))))))) (, ,) (CC but) (S (NP (PRP it)) (VP (VBZ 's) (ADVP (RB really)) (NP (NP (NN nothing)) (ADJP (ADJP (JJR more)) (PP (IN than) (NP (ADJP (VBN warmed) (HYPH -) (IN over)) (NML (JJ cold) (NN war)) (NN paranoia))))))) (. .)))
(ROOT (S (S (NP (NP (DT ) (NN )) (PP (IN ) (NP (DT ) (NNS )))) (VP (VBZ ) (S (VP (TO ) (VP (VB ) (NP (NP (DT ) (JJ ) (NN )) (PP (IN ) (NP (JJ ) (NN ))))))))) (, ) (CC ) (S (NP (PRP )) (VP (VBZ ) (ADVP (RB )) (NP (NP (NN )) (ADJP (ADJP (JJR )) (PP (IN ) (NP (ADJP (VBN ) (HYPH ) (IN )) (NML (JJ ) (NN )) (NN ))))))) (. )))