About: http://webisa.webdatacommons.org/68694596

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	At one time, the politics of coal was a contest between West Virginia, Pennsylvania, and other eastern states where coal is high in sulfur, versus the West, where the sulfur content of coal is far lower.
http://www.w3.org/ns/prov#wasQuotedFrom	americanthinker.com