( Vaccination ( ( can ( prevent ( ( some forms ) ( of meningitis ) ) ) ) . ) )
(ROOT (S (NP (NNP Vaccination)) (VP (MD can) (VP (VB prevent) (NP (NP (DT some) (NNS forms)) (PP (IN of) (NP (NNS meningitis)))))) (. .)))
Vaccination can prevent some forms of meningitis.
(ROOT (S (NP (NNP Vaccination)) (VP (MD can) (VP (VB protect) (NP (RB even) (JJ young) (NNS children)) (PP (IN against) (NP (NP (NNS diseases)) (PP (JJ such) (IN as) (NP (JJ viral) (NNS meningitis))))))) (. .)))