PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • These anchors are especially designed for cases when it is needed to get a permanent anchor (mooring, buoys, etc).
http://www.w3.org/ns/prov#wasQuotedFrom
  • boatsdepot.org