(S (S (NP (NP (BASENP (NNP Anschutz) (NNP Entertainment) (NNP Group)) (PRN (LRB -LRB-) (BASENP (NNP AEG)) (RRB -RRB-))) (CC and) (BASENP (JJ mobile) (NN phone) (NN company) (NNP O2))) (VP (VBP have) (VP (VBN said) (SBAR (S (BASENP (PRP they)) (VP (VBP intend) (S (VP (TO to) (VP (VP (VP (VB open) (NP (BASENP (NNP London) (POS 's)) (BASENP (NNP Millennium) (NNP Dome)))) (PP (IN as) (BASENP (DT a) (NN concert) (NN arena)))) (PP (IN in) (BASENP (NNP April) (NN 2007)))))))))))) (PERIOD .))