( ( ( ( ( The ( commercial application ) ) , ) Gardasil ) , ) ( ( is ( a ( vaccine ( to ( work ( against ( ( certain types ) ( of ( ( human papillomavirus ) ( -LRB- ( HPV -RRB- ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (JJ commercial) (NN application)) (, ,) (NP (NNP Gardasil)) (, ,)) (VP (VBZ is) (NP (DT a) (NN vaccine) (S (VP (TO to) (VP (VB work) (PP (IN against) (NP (NP (JJ certain) (NNS types)) (PP (IN of) (NP (NP (JJ human) (NNS papillomavirus)) (PRN (-LRB- -LRB-) (NP (NNP HPV)) (-RRB- -RRB-))))))))))) (. .)))
The commercial application, Gardasil, is a vaccine to work against certain types of human papillomavirus (HPV).
(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))))))))) (. .)))