PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The X-ray emitter further comprises a connector 25 designed to withstand high voltages of several tens or even hundreds of kilovolts and made from an insulating material such as an oxide, and more particularly a ceramic, especially an aluminum-based ceramic, for example based on alumina or aluminum nitride.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com