PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Other fields may track, for example, whether the item has been recommended to a user, whether the item is a gift, or whether the item is covered by a subscription.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com