PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Their API supports multiple languages including Java, C++, ActiveX and Excel's DDE. You can effectively do just about anything via the API that you can do using their fairly robust trading platform.
http://www.w3.org/ns/prov#wasQuotedFrom
  • stackoverflow.com