PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • It???s unclear whether or not the added bonus of conducting electricity was an intentional feature, but the better metals such as copper or silver wouldn???t be as economical or convenient to obtain.
http://www.w3.org/ns/prov#wasQuotedFrom
  • boingboing.net