About: http://webisa.webdatacommons.org/110942341

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 biggest source of energy in the United States of America is petroleum, including oil and natural gas.
http://www.w3.org/ns/prov#wasQuotedFrom	sbir.gov