PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In North Dakota, 30 percent of the natural gas produced is burned as waste, much more than any other U.S. oil field, but flaring is common in other countries, including Russia, Nigeria and Iran.
http://www.w3.org/ns/prov#wasQuotedFrom
  • upi.com