PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The technology boom has also fueled an increased demand for energy particularly oil and natural gas and minerals such as copper.
http://www.w3.org/ns/prov#wasQuotedFrom
  • energycatalyzer3.com