About: http://webisa.webdatacommons.org/181542385

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	Crude oil is the most complex natural mixture available containing more than onehundred thousand different compounds which provides a challenge to any analytical system.
http://www.w3.org/ns/prov#wasQuotedFrom	mpg.de