About: http://webisa.webdatacommons.org/37585616

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	In 1918, annual coal production peaked at 5 million tons, a relatively minor total compared with states such as Pennsylvania and West Virginia.
http://www.w3.org/ns/prov#wasQuotedFrom	sourcewatch.org