( ( At ( ( the time ) ( of ( the order ) ) ) ) ( , ( ( ( ( Gardasil , ) ( ( a ( ( newly approved ) drug ) ) ( manufactured ( by Merck ) ) ) ) , ) ( ( was ( ( the ( only ( HPV vaccine ) ) ) ( approved ( by ( the ( Food ( and ( Drug Administration ) ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN At) (NP (NP (DT the) (NN time)) (PP (IN of) (NP (DT the) (NN order))))) (, ,) (NP (NP (NNP Gardasil)) (, ,) (NP (NP (DT a) (ADJP (RB newly) (VBN approved)) (NN drug)) (VP (VBN manufactured) (PP (IN by) (NP (NNP Merck))))) (, ,)) (VP (VBD was) (NP (NP (DT the) (JJ only) (NNP HPV) (NN vaccine)) (VP (VBN approved) (PP (IN by) (NP (DT the) (NNP Food) (CC and) (NNP Drug) (NNP Administration)))))) (. .)))
At the time of the order, Gardasil, a newly approved drug manufactured by Merck, was the only HPV vaccine approved by the Food and Drug Administration.
(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))))))))) (. .)))