(S (S (BASENP (NNP IAG)) (VP (VBZ intends) (S (VP (TO to) (VP (VP (VP (VP (VB use) (BASENP (VBN acquired) (NNS slots))) (PP (IN at) (BASENP (DT the) (JJ busy)))) (PRN (COMMA ,) (SBAR (WHNP (WDT which)) (S (VP (VBZ serves) (BASENP (NNP London))))) (COMMA ,))) (S (VP (TO to) (VP (VP (VB expand) (BASENP (PRPD their) (JJ own) (NNS routes))) (PP (IN into) (BASENP (NNP Asia))))))))))) (PERIOD .))