| http://www.w3.org/ns/prov#value | - This conference is the follow-up to the 2008 sustainability conference, changing focus from sustainability to cities of the future, he added. ???Rivers are key to cities of the future,??? Pedersen said. ???Rivers really provide a place for communities.??? City residents, businesses, and managers are recognizing that water is a resource that must be managed effectively and made accessible to people
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