About: http://webisa.webdatacommons.org/29262583

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	Over the past century, major commodities such as copper and oil have had flat trends in real terms, but have exhibited considerable volatility from decade to decade.
http://www.w3.org/ns/prov#wasQuotedFrom	ubs.com