About: http://webisa.webdatacommons.org/432357158

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	If, therefore, two different commodities, such as gold and silver, are simultaneously measures of value, all commodities have two prices ?? one a gold-price, the other a silver-price.
http://www.w3.org/ns/prov#wasQuotedFrom	wikisource.org