(S (S (BASENP (DT The) (JJ poor) (NN weather) (NNS conditions)) (VP (VBD prompted) (NP (BASENP (DT the) (NN shutdown)) (PP (IN of) (NP (NP (NP (BASENP (NNP LaGuardia)) (COMMA ,) (BASENP (NNP John) (NNP F.) (NNP Kennedy))) (CONJP (COMMA ,) (CC and)) (BASENP (NNP Newark) (NNP International))) (NNPS Airports)))))) (PERIOD .))