PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The bitumen is then retrieved by an the extraction process and finally taken to an upgrader facility where it is refined and converted into crude oil and other petroleum products.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com