(S (S (SBAR (IN While) (S (BASENP (DT the) (NN overnight) (NNS ratings)) (VP (VBP are) (ADJP (RB fairly) (JJ accurate))))) (COMMA ,) (S (BASENP (DT the) (NNS numbers)) (VP (VP (VBP are) (ADJP (JJ preliminary))) (CC and) (VP (VBP are) (ADJP (JJ subject) (PP (TO to) (BASENP (JJ minor) (NN change)))))))) (PERIOD .))