PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • As I understand it, pure metals can not be transparent because light is an electromagnetic wave which gets "short-circuited by conductive materials.
http://www.w3.org/ns/prov#wasQuotedFrom
  • slashdot.org