PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • A base metal, such as copper, brass, nickel silver or another combination of metals, has a thin layer of silver coated over it.
http://www.w3.org/ns/prov#wasQuotedFrom
  • brokengold.com