(S (S (NP (BASENP (DT The) (NN aircraft)) (PRN (COMMA ,) (VP (VBN registered) (PP (IN as) (BASENP (NN number) (NNP VP-BKO)))) (COMMA ,))) (VP (VBD was) (UCP (ADJP (BASENP (NN sixteen) (NNS years)) (JJ old)) (COMMA ,) (VP (ADVP (RB originally)) (VP (VBN operated) (PP (IN by) (BASENP (NNP Xiamen) (NNPS Airlines)))))))) (PERIOD .))