even on its own ludicrous terms , the sum of all fears generates little narrative momentum , and invites unflattering comparisons to other installments in the ryan series . 
(ROOT (S (PP (ADVP (RB even)) (IN on) (NP (PRP$ its) (JJ own) (JJ ludicrous) (NNS terms))) (, ,) (NP (NP (DT the) (NN sum)) (PP (IN of) (NP (DT all) (NNS fears)))) (VP (VP (VBZ generates) (NP (JJ little) (JJ narrative) (NN momentum))) (, ,) (CC and) (VP (VBZ invites) (NP (NP (JJ unflattering) (NNS comparisons)) (PP (IN to) (NP (NP (JJ other) (NNS installments)) (PP (IN in) (NP (DT the) (NN ryan) (NN series)))))))) (. .)))
(ROOT (S (PP (ADVP (RB )) (IN ) (NP (PRP$ ) (JJ ) (JJ ) (NNS ))) (, ) (NP (NP (DT ) (NN )) (PP (IN ) (NP (DT ) (NNS )))) (VP (VP (VBZ ) (NP (JJ ) (JJ ) (NN ))) (, ) (CC ) (VP (VBZ ) (NP (NP (JJ ) (NNS )) (PP (IN ) (NP (NP (JJ ) (NNS )) (PP (IN ) (NP (DT ) (NN ) (NN )))))))) (. )))