PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • also there is some innovation in terms of the attachment bolts which might get used for mounting keel, or other accessories.
http://www.w3.org/ns/prov#wasQuotedFrom
  • seasteading.org