About: http://webisa.webdatacommons.org/141024766

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, a feed gas such as air (which is to be separated into its various component gases) is delivered under pressure to a previously pressurized tower at a feed end of the tower.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com