PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Aluminium is a soft and lightweight but strong metal with a dull silver-gray appearance, due to a thin layer of oxidation that forms quickly when it is exposed to air and which prevents further corrosion.
http://www.w3.org/ns/prov#wasQuotedFrom
  • worldofmolecules.com