(S (S (PP (IN As) (BASENP (DT a) (NN result))) (S (BASENP (DT the) (NNP AVO)) (VP (VP (VP (VBD raised) (BASENP (DT the) (NN alert) (NN level))) (PP (TO to) (QT (DQL `) (BASENP (NN warning)) (DQR ')))) (CC and) (VP (NP (NN level) (NP (QT (DQL `) (BASENP (NN red)) (DQR ')) (PP (IN for) (BASENP (NN aviation))))))))) (PERIOD .))