(S (S (BASENP (PRP It)) (VP (VBZ is) (VP (VBN alleged) (SBAR (IN that) (S (BASENP (DT the) (NNP US)) (VP (VBZ has) (NP (BASENP (DT a) (NN number)) (PP (IN of) (NP (BASENP (JJ secret) (NNS prisons)) (SBAR (WHADVP (WRB where)) (S (BASENP (NNS suspects)) (VP (VBP are) (VP (VP (VBN transported) (PP (TO to))) (CC and) (VP (VBN questioned) (S (VP (VBG using) (NP (BASENP (NNS techniques)) (SBAR (WHNP (WDT that)) (S (VP (VBP violate) (BASENP (JJ international) (JJ human) (NNS rights) (NNS conventions)))))))))))))))))))))) (PERIOD .))