About: http://webisa.webdatacommons.org/198996407

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...http://www.gccoal.com/about-us/met-coal-101.htmlAccording to Natural Resources CanadaCoal is classified, based on the pressure and temperature (metamorphism) to which it has been subjected, into four types or ranks.
http://www.w3.org/ns/prov#wasQuotedFrom	nepacrossroads.com