(S (S (S (NP (EX There)) (VP (VP (VBP are) (ADVP (RB reportedly))) (NP (NNS plans) (S (VP (TO to) (VP (VB build) (NP (NP (BASENP (DT a) (NN cargo) (NN version)) (PP (IN of) (BASENP (DT the) (NN plane)))) (COMMA ,) (SBAR (WHNP (WDT which)) (S (PRN (COMMA ,) (S (BASENP (NN aviation) (NNS experts)) (VP (VBP have) (VP (VBD suggested)))) (COMMA ,)) (VP (MD would) (VP (VB be) (NP (BASENP (DT the) (NN world) (POS 's)) (BASENP (JJ first) (QT (DQL ``) (JJ triple-decker) (DQR '')) (NN freight) (NN aircraft)))))))))))))) (COLON ;) (S (BASENP (NNP Airbus)) (VP (VP (VBZ has) (RB not)) (VP (VBN confirmed) (SBAR (IN that) (S (BASENP (DT this) (NN variant)) (VP (MD will) (VP (VB be) (VP (VBN built)))))))))) (PERIOD .))