(S (S (PP (VBG According) (PP (TO to) (BASENP (NNP Clean) (NNP Up) (NNP Australia)))) (S (BASENP (JJ plastic) (NNS bags)) (VP (MD can) (VP (VP (VB take) (NP (QP (RB between) (BASENP (NN 20) (CC and) (NN 1000))) (NNS years))) (S (VP (TO to) (VP (VB break) (PRT (RP down))))))))) (PERIOD .))