PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The Hazards of Being a Tool PusherDrilling was a hazardous occupation for the men who worked in the gas well industry who were often referred to as ???tool pushers.??? Drilling rigs, when mixed with volatile substances such as gas and oil, pose an imminent danger to the men employed in the business.
http://www.w3.org/ns/prov#wasQuotedFrom
  • blogspot.com