PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • However when push comes to shove and you really must collect the data yourself from raw source, such tools as google refine come in handy.
http://www.w3.org/ns/prov#wasQuotedFrom
  • allanalytics.com