(S (S (BASENP (PRP They)) (VP (VP (VP (VBP go) (PRT (RP on))) (S (VP (TO to) (VP (VP (VB accuse) (NP (NP (BASENP (DT the) (NNP ICAO)) (COMMA ,) (BASENP (NNP ATSB))) (CC and) (NP (BASENP (NNP Indonesian) (NNP Director)) (PP (IN of) (BASENP (NNP Aviation) (NNP Safety)))))) (PP (IN of) (QT (DQL ``) (S (VP (VBG keeping) (ADJP (JJ quiet)))) (DQR ''))))))) (CC and) (VP (VP (VBD described) (BASENP (PRP them))) (PP (IN as) (QT (DQL `) (ADJP (JJ compromised)) (DQR ')))))) (PERIOD .))