(S (S (S (BASENP (DT The) (NN weather)) (VP (VBZ was) (ADJP (JJ good)))) (SBAR (IN as) (S (BASENP (DT the) (NN plane)) (VP (VBD was) (VP (VBG landing) (PP (IN in) (BASENP (NNP San) (NNP Francisco)))))))) (PERIOD .))