(S (S (BASENP (JJ Independent) (NN aviation) (NN specialist) (NNP James) (NNP Halstead)) (VP (VBD said) (SBAR (S (BASENP (PRP he)) (VP (VBD believed) (SBAR (S (BASENP (DT the) (NN merger)) (VP (VBZ was) (ADJP (JJ necessary) (SBAR (IN for) (S (BASENP (NNP BA)) (VP (TO to) (VP (VP (VB remain) (ADJP (JJ competitive))) (PP (IN amongst) (BASENP (JJ other) (JJ European) (NN air) (NNS carriers)))))))))))))))) (PERIOD .))