(S (S (NP (NP (BASENP (NNP British) (NNPS Airways)) (PRN (LRB -LRB-) (BASENP (NNP BA)) (RRB -RRB-))) (CC and) (BASENP (DT the) (JJ Spanish) (NN airline) (NNP Iberia))) (VP (VBP have) (VP (VBN signed) (NP (BASENP (DT a) (NN merger) (NN deal)) (COMMA ,) (SBAR (WHNP (WDT which)) (S (VP (MD will) (VP (VB create) (NP (BASENP (NN one)) (PP (IN of) (NP (BASENP (DT the) (JJS largest) (NN air) (NN carrier) (NNS groups)) (PP (IN in) (BASENP (DT the) (NN world)))))))))))))) (PERIOD .))