PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • For YouTube, it???s time spent per session, videos played per session, and secondarily, events such as comment, like, share, search, etc.
http://www.w3.org/ns/prov#wasQuotedFrom
  • kissmetrics.com