About: http://webisa.webdatacommons.org/291662054

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	To establish the combustion zone, air or other oxygen containing gas can be introduced to an ignition situs 36 at the top of the retort through a conduit or borehole 54.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com