PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • To increase credibility and rel??evance of ratings and reviews, allowing customers to rate and tag a specific product attribute, such as quality or appearance.
http://www.w3.org/ns/prov#wasQuotedFrom
  • multichannelmerchant.com