PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Two diamonds of equal weight may be unequal in value, depending upon other determining factors such as Cut, Color, and Clarity.
http://www.w3.org/ns/prov#wasQuotedFrom
  • gemologicalgradingservices.com