(S (S (BASENP (DT The) (NN airline)) (VP (VBZ has) (VP (ADVP (RB also)) (VP (VBN introduced) (S (BASENP (NNS plans)) (VP (TO to) (VP (VP (VB overhaul) (NP (BASENP (PRPD its) (NN fleet)) (PP (IN of) (BASENP (JJR older) (NNP Boeing) (NNS 747s))))) (PP (IN with) (BASENP (NNP Airbus) (NNS A330s)))))))))) (PERIOD .))