PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • A ?sandwich cluster? is a molecule consisting of alternating layers of metal atoms and organic molecules, such as vanadium and benzene.
http://www.w3.org/ns/prov#wasQuotedFrom
  • cdrinfo.com