PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Non-ferrous metals refer to scrap metal other than iron and steel, which include: aluminum, copper, lead, zinc, nickel, titanium, cobalt, chromium, and precious metals.
http://www.w3.org/ns/prov#wasQuotedFrom
  • botw.org