(S (S (BASENP (DT The) (NNP Opposition)) (VP (VBZ claims) (SBAR (IN that) (S (S (BASENP (DT the) (VBN proposed) (NN carbon) (NN tax)) (VP (MD will) (VP (VB cause) (S (BASENP (NN petrol) (NNS prices)) (VP (TO to) (VP (VB rise) (PP (IN by) (NP (BASENP (QP (NN A$) (NN 0.065))) (PP (IN per) (BASENP (NN litre))))))))))) (SBAR (IN while) (S (BASENP (NN energy) (NNS bills)) (VP (MD may) (VP (VB increase) (PP (IN by) (NP (BASENP (QP (DOLLAR $) (NN 300))) (PP (IN per) (BASENP (NN year))))))))))))) (PERIOD .))