PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Coal is a major source of carbon dioxide emissions. ?? The recent disaster at the Fukushima nuclear power plant in Japan should give us plenty of concern about the future of nuclear power. ?? Natural gas is currently relatively inexpensive.
http://www.w3.org/ns/prov#wasQuotedFrom
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