PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Gold, and some other precious metals such as silver, platinum and palladium for example, are assets that are both tangible and liquid (i.e. easily traded), unlike real estate which is tangible but not liquid, or company shares and bonds which are liquid but not tangible.Considering its high density and high value per unit mass, storing and transporting gold is very easy.
http://www.w3.org/ns/prov#wasQuotedFrom
  • goldprice.org