(S (S (NP (BASENP (NNS Reports)) (PP (IN from) (NP (BASENP (NNP Colorado)) (CC and) (BASENP (NNP Los) (NNP Angeles))))) (VP (VBP have) (VP (VBN claimed) (SBAR (IN that) (S (BASENP (NNP ICE)) (VP (VBZ holds) (BASENP (QP (JJ averaged) (QP (RB over) (NN 20))) (NNS days)))))))) (PERIOD .))