PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • One of the big drivers for this growth appears to be teenagers, who are using the site as a kind of combination of Facebook and Twitter, to share photos and other Internet ???memes.??? But will Tumblr ever figure out how to make money from this massive user base?
http://www.w3.org/ns/prov#wasQuotedFrom
  • gigaom.com