About: http://webisa.webdatacommons.org/397091879

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	They are widely accepted as representative, and products such as futures and ETFs provide liquid access to them in most developed markets.
http://www.w3.org/ns/prov#wasQuotedFrom	reference.com