PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • To date, the UKCS has produced the equivalent of 41 billion barrels of oil and there is an estimated 12 billion to 24 billion barrels still left.
http://www.w3.org/ns/prov#wasQuotedFrom
  • heraldscotland.com