PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The problem is, most brands and digital marketers still don???t understand that YouTube is a social network, and thus fail to fully engage their audiences.
http://www.w3.org/ns/prov#wasQuotedFrom
  • observer.com