PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • If cost is an issue, you can homebrew an adequate one from 10' of copper pipe and a small, inexpensive air-variable capacitor--small loops only get difficult/expensive when you start talking QRO. There are tons of homebrew examples on the web.
http://www.w3.org/ns/prov#wasQuotedFrom
  • eham.net