PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • According to my invention this is accomplished by sealing or closing off the collecting system, and especially the conduits, nipples or pipes which enter the oil sand, from what may be termed -offending strata.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.ca