| http://www.w3.org/ns/prov#value | - A compulsory contribution to the support of government, levied on persons, property, income, commodities, transactions, etc., now at fixed rates, mostly proportional to the amount on which the contribution is levied. ??? Oxford English Dictionary.Here is an old Reuters story about the cap-and-trade plan:WASHINGTON (Reuters) - President Barack Obama's estimate of $646 billion in revenue for the fir
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