About: http://webisa.webdatacommons.org/6629368

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	Until about 150 years ago, one of the main sources of oil ??? for things such as lighting ??? was whales.
http://www.w3.org/ns/prov#wasQuotedFrom	moneyweek.com