(S (S (NP (BASENP (NNS Investigators)) (PP (IN with) (NP (BASENP (DT the) (NNP National) (NNP Transportation) (NNP Safety) (NNP Board)) (PP (IN in) (BASENP (DT the) (NNP United) (NNPS States)))))) (VP (VBP have) (VP (VP (VP (VBN issued) (NP (DT an) (QT (DQL `) (BASENP (JJ urgent) (NN safety) (NN recommendation)) (DQR ')))) (PP (IN in) (NP (BASENP (NN connection)) (PP (TO to) (NP (NP (BASENP (PRPD their) (NN role)) (PP (IN alongside) (NP (BASENP (DT the) (NNP United) (NNP Kingdom) (POS 's)) (BASENP (NNP Air) (NNPS Accidents) (NNP Investigation) (NNP Branch))))) (PP (IN in) (S (VP (VBG investigating) (NP (NP (BASENP (NN loss)) (PP (IN of) (BASENP (NN power)))) (PP (IN in) (NP (BASENP (NNP Rolls-Royce) (NNS engines)) (PP (IN on) (BASENP (NNP Boeing) (NNPS 777s)))))))))))))) (COMMA ,) (PP (IN with) (S (BASENP (DT the) (NNP AAIB)) (VP (VBG following) (BASENP (NN suit)))))))) (PERIOD .))