PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The challenge is that as Dropbox adds users and devices, it approaches the echelon of web companies that includes heavyweights such as Facebook and Twitter.
http://www.w3.org/ns/prov#wasQuotedFrom
  • gigaom.com