PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Several studies, including ones conducted by the Royal Society, the U.S. Secretary of Energy Advisory Board, and the International Energy Agency, have concluded that hydraulic fracturing is reasonably safe when properly regulated.
http://www.w3.org/ns/prov#wasQuotedFrom
  • foreignaffairs.com