About: http://webisa.webdatacommons.org/236208541

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	First, an inert gas such as nitrogen or carbon dioxide is introduced into the tank to purge and expel the air inside the rotary tank.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com