PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • For items such as crop fertilizer and chemicals, this is accomplished by asking the farmer how much per acre was paid for the inputs used to produce the crop.
http://www.w3.org/ns/prov#wasQuotedFrom
  • usablenet.com