(S (S (NP (DT The) (NP (NNP Indonesian) (NP (BASENP (NNP Pilot) (POS 's)) (NNP Association)))) (VP (VBZ has) (VP (ADVP (RB also)) (VP (VP (VBN said) (SBAR (IN that) (S (BASENP (DT the) (JJ criminal) (NN prosecution)) (VP (MD should) (VP (VB be) (VP (VBN avoided))))))) (COMMA ,) (S (VP (VBG arguing) (SBAR (IN that) (S (NP (BASENP (DT the) (JJ only) (NNS people)) (SBAR (WHNP (WP who)) (S (VP (MD can) (VP (VB judge) (SBAR (IN whether) (S (BASENP (NNS mistakes)) (VP (VBD were) (VP (VBN made) (PP (IN in) (BASENP (NN aviation)))))))))))) (VP (VBP are) (NP (NP (BASENP (DT those)) (VP (ADVP (RB professionally)) (VBN involved))) (CC and) (NP (RB not) (BASENP (DT the) (NN police))))))))))))) (PERIOD .))