About: http://webisa.webdatacommons.org/356734490

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	Petroleum or crude oil is a thick greenish-brown liquid found in permeable underground rock, and consisting mainly of hydrocarbons and mixed with other elements, especially oxygen,
http://www.w3.org/ns/prov#wasQuotedFrom	everything2.com