About: http://webisa.webdatacommons.org/241993043

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	from such sources as natural gas systems, coal mines, waste dumps and farms.
http://www.w3.org/ns/prov#wasQuotedFrom	docstoc.com