PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • [Delusion is a big problem with the green crowd](http://www.theprovince.com/technology/Delusion+problem+with+green+crowd/6823927/story.html)
http://www.w3.org/ns/prov#wasQuotedFrom
  • scienceblogs.com