( There ( ( are ( ( ( two ( HPV vaccines ) ) ( -LRB- ( ( ( Gardasil and ) Cervarix ) -RRB- ) ) ) ( which ( ( ( reduce ( ( the risk ) ( of ( ( ( ( cancerous or ) precancerous ) changes ) ( of ( the cervix ) ) ) ) ) ) and ) ( ( ( perineum ( by ( about ( 93 ( ( ( % and ) 62 ) % ) ) ) ) ) , ) respectively ) ) ) ) ) . ) )
(ROOT (S (NP (EX There)) (VP (VBP are) (NP (NP (CD two) (NNP HPV) (NNS vaccines)) (PRN (-LRB- -LRB-) (NP (NNP Gardasil) (CC and) (NNP Cervarix)) (-RRB- -RRB-)) (SBAR (WHNP (WDT which)) (S (VP (VP (VB reduce) (NP (NP (DT the) (NN risk)) (PP (IN of) (NP (NP (ADJP (JJ cancerous) (CC or) (JJ precancerous)) (NNS changes)) (PP (IN of) (NP (DT the) (NN cervix))))))) (CC and) (VP (VB perineum) (PP (IN by) (NP (QP (RB about) (CD 93) (NN %) (CC and) (CD 62) (NN %)))) (, ,) (ADVP (RB respectively)))))))) (. .)))
There are two HPV vaccines (Gardasil and Cervarix) which reduce the risk of cancerous or precancerous changes of the cervix and perineum by about 93% and 62%, respectively.
(ROOT (S (NP (NNP Gardasil)) (VP (VBZ is) (NP (DT the) (NN vaccine) (S (VP (TO to) (VP (VB prevent) (NP (NP (NN infection)) (PP (IN of) (NP (NN hpv))))))))) (. .)))