PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The catalog further provides a means for ranking received email messages within specific product or service categories with priority placement given to those messages originating with product or service providers having the highest trust scores in which the score is a number representing an average time that a user's email address is active with a specific provider.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com