PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Terahertz scanners can not only detect metal objects but also non-metal materials such as ceramics, powders and liquids.
http://www.w3.org/ns/prov#wasQuotedFrom
  • xinhuanet.com