PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • This American response seems particularly problematic because the United States is the largest producer in the world???nearly twenty-five percent???of heat- trapping greenhouse gases that seriously aggravate the global warming situation.???
http://www.w3.org/ns/prov#wasQuotedFrom
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