(S (S (PP (IN Under) (BASENP (DT the) (NN plan))) (COMMA ,) (S (BASENP (DT both) (NNS companies)) (VP (VP (VBP keep) (BASENP (PRPD their) (JJ own) (NNS brands) (CC and) (NNS operations))) (CONJP (COMMA ,) (CC but)) (VP (MD will) (VP (VB be) (VP (VBN owned) (PP (IN by) (NP (BASENP (NNP International) (NNPS Airlines) (NNP Group)) (COMMA ,) (BASENP (DT a) (JJ new) (JJ holding) (NN company)))))))))) (PERIOD .))