PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Just in the last several decades, such developments as horizontal drilling, 3-D seismic exploration techniques, and ever-deeper offshore production have sustained global (if not regional) output.
http://www.w3.org/ns/prov#wasQuotedFrom
  • backstoryradio.org