About: http://webisa.webdatacommons.org/24609096

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	Coal is a relatively inexpensive source of energy at the present time (the average worldwide cost of electricity generated by burning coal is about 2 cents per kilowatt-hour).
http://www.w3.org/ns/prov#wasQuotedFrom	windows2universe.org