| http://www.w3.org/ns/prov#value | - Both small and large for-profit and not-for-profit enterprises are emerging, among them a business founded by a civic-minded local entrepreneur who touts plans for ???the world???s largest urban farm.??? Hundreds of smaller gardens already dot Detroit, a city founded by French farmers three centuries ago, and city leaders are in the early stages of rewriting local ordinances to facilitate a more m
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