(S (S (BASENP (DT The) (NNP United) (NNPS States) (NNP Environmental) (NNP Protection) (NNP Agency)) (VP (VBD claimed) (SBAR (IN that) (S (PP (IN in) (BASENP (NN 2000))) (S (NP (BASENP (QP (RB only) (NN 1)) (NN %)) (PP (IN of) (NP (BASENP (JJ plastic) (NNS bags)) (PP (IN in) (BASENP (DT the) (NNP United) (NNPS States)))))) (VP (VBD were) (VP (VBN recycled)))))))) (PERIOD .))