About: http://webisa.webdatacommons.org/399982895

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	Air can be used instead of oxygen if desired, for example, or the gas mixture can be diluted, if desired, with an inert gas such as nitrogen, argon or carbon dioxide.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com