(S (S (PP (IN In) (NP (NP (BASENP (DT the) (NN foreword)) (PP (IN of) (BASENP (DT the) (NN report)))) (COMMA ,) (VP (VBN written) (PP (IN by) (BASENP (NNP Amnesty) (NNP International) (NNP Secretary) (NNP General) (NNP Irene) (NNP Khan)))))) (COMMA ,) (S (BASENP (NNP Guantanamo)) (VP (VBD was) (VP (VBN compared) (PP (TO to) (NP (BASENP (DT a) (JJ Soviet-era) (NN gulag)) (SBAR (WHPP (IN in) (WHNP (WDT that))) (S (BASENP (PRP it)) (VP (VBZ is) (QT (DQL ``) (VP (VBG entrenching) (NP (NP (BASENP (DT the) (NN practice)) (PP (IN of) (BASENP (ADJP (JJ arbitrary) (CC and) (JJ indefinite)) (NN detention)))) (PP (IN in) (NP (BASENP (NN violation)) (PP (IN of) (BASENP (JJ international) (NN law))))))) (DQR ''))))))))))) (PERIOD .))