About: http://webisa.webdatacommons.org/213213405

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	Oil is the cheapest source of energy available to mankind, whether is clean or not depends on the technology used to burn it.
http://www.w3.org/ns/prov#wasQuotedFrom	fool.com