About: http://webisa.webdatacommons.org/444428944

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	The first zone preheats in-coming gas, the second zone removes methane and other impurities, and the third zone removes hydrogen.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com