PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In particular, in order to increase the reversal efficiency, preferable materials for the first intermediate layer 300 are conductive metals such as copper (Cu), gold (Au), silver (Ag), aluminum (Al), or an alloy containing one or more of them.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com