PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Duke researcher on Bloomberg TV: ???I think the most likely explanation is that there are gas well casings that are leaking.
http://www.w3.org/ns/prov#wasQuotedFrom
  • energyindepth.org