PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • I don???t think they usually bother much with things like iron (after all, there???s copper and tin and other metals that can draw a few bucks) but it might be worth it when you consider the cost of shipping it in otherwise.
http://www.w3.org/ns/prov#wasQuotedFrom
  • seasteading.org