PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • there are already proven standards that exists to solve this problem such as web-services, soap, and JSON. I would recommend you to use a web-service.
http://www.w3.org/ns/prov#wasQuotedFrom
  • stackexchange.com