PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Oil exploration is a risky business, said Ballard, of Ballard Petroleum, noting that producers exploring new production have a 90 percent chance of losing their investment.
http://www.w3.org/ns/prov#wasQuotedFrom
  • minneapolisfed.org