About: http://webisa.webdatacommons.org/338636058

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	The value of the potential oil and natural gas deposits and other minerals lying beneath the U.S. ECS is difficult to estimate at present, but it is likely substantial.
http://www.w3.org/ns/prov#wasQuotedFrom	heritage.org