PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The move is an acknowledgment of how much social media activities like blogging and consumer-created content play in determining search results, which are routinely filled with blog posts, YouTube videos, Flickr photos and other user-developed content.
http://www.w3.org/ns/prov#wasQuotedFrom
  • adweek.com