PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • ???There are a lot of applications where you need ranging in high-angle and distorted magnetic fields,??? said Son Pham of ConocoPhillips. ???(Magnetic ranging) technology is fairly old.???
http://www.w3.org/ns/prov#wasQuotedFrom
  • drillingcontractor.org