| http://www.w3.org/ns/prov#value | - Why you are paying more for groceries By Ben Rooney, staff reporterMarch 8, 2011: 2:53 PM ETNEW YORK (CNNMoney) -- After holding steady for two years, food prices in the United States are rising once again, due to growing demand and tight supplies of wheat, corn and other key commodities.That means American consumers are being hit with higher grocery bills at a time when gas prices are already star
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