(S (S (BASENP (NNP RPG)) (VP (VP (VBZ is) (RB not)) (VP (VBN recognized) (PP (IN by) (NP (NP (BASENP (DT the) (NN airline)) (SBAR (WHNP (WDT which)) (S (VP (VBZ calls) (S (BASENP (DT the) (NN group)) (QT (DQL '') (S (VP (PRN (LRB [) (VBG lacking) (RRB ])) (NP (DT any) (NP (NP (BASENP (NN independence)) (COMMA ,) (BASENP (NN objectivity))) (CC or) (BASENP (NN reliability)))))) (DQR ''))))))) (CC and) (BASENP (DT a) (NN union) (NN front))))))) (PERIOD .))