PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The completion string can include packers to isolate specific portions of the well, perforation guns used to provide communication ports between the casing and surrounding formation, and other devices.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com