PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • nine hundred randomly chosen user comments on articles about immigration, half from newspapers that allowed anonymous postings, such as the Los Angeles Times and the Houston Chronicle, and half from ones that didn???t, including USA Today and the Wall Street Journal,
http://www.w3.org/ns/prov#wasQuotedFrom
  • typepad.com