PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Twitter, Facebook, LinkedIn, and other social sites promote collaboration and discussion, and students have embraced them as a means to ask questions and exchange ideas.
http://www.w3.org/ns/prov#wasQuotedFrom
  • socialmediatoday.com