About: http://webisa.webdatacommons.org/317069632

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http://www.w3.org/ns/prov#value	In some cases it may be desirable to replace the withdrawn oxygen with an inert gas, such as nitrogen, methane, carbon dioxide, and the like.
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr