About: http://webisa.webdatacommons.org/225790476

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 can do that even in the spot market, though mostly prices are manipulated on the derivatives markets.
http://www.w3.org/ns/prov#wasQuotedFrom	wordpress.com