PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In such a configuration of the conventional machine, however, there is a problem that much expense in time and effort is required for maintenance.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com