PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • A method and system for employing fast, but easily corrupted mass storage for reliably backing up objects, such as files and databases.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com