PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • A micro-blogging service such as Twitter is a promising new data source for Internet-based surveillance because of the volume of messages, their frequency and public availability, Culotta told Science Daily last month.
http://www.w3.org/ns/prov#wasQuotedFrom
  • theatlantic.com