(S (S (BASENP (DT The) (NN plane)) (VP (VP (VBD was) (PP (IN with) (BASENP (DT the) (NNP Royal) (NNP Air) (NNP Forces) (NNP Association)))) (CC and) (VP (VBD had) (VP (VBN been) (VP (VBG performing) (PP (IN in) (NP (BASENP (DT a) (NNP Battle)) (PP (IN of) (BASENP (NNP Britain) (NN display)))))))))) (PERIOD .))