PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • mining is a service for which a service provider demands a precise fee, and the sale of the mined cryptocurrency ??? with the use of Internet and websites will constitue [sic] an activity which is subject to VAT in the territory of Poland. (Jaroslaw Adamowski, Polish Tax Authority: Bitcoin Mining Profit Subject To 23% VAT, COINDESK (May 27, 2014).)
http://www.w3.org/ns/prov#wasQuotedFrom
  • loc.gov