(S (S (BASENP (NNP Crossrail)) (VP (VBZ is) (NP (BASENP (DT the) (JJ first) (JJ major) (JJ new) (NN train) (NN line)) (S (VP (TO to) (VP (VB be) (VP (VP (VBN built) (PP (IN in) (BASENP (NNP London)))) (PP (IN in) (BASENP (NNS decades)))))))))) (PERIOD .))