About: http://webisa.webdatacommons.org/402225401

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	By considerable increasing the temperature in the coal layer, the coal begins to react with the supplied gases, as a result of which combustible gases are generated, such as carbon monoxide, hydrogen gas and hydrocarbons.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es