About: http://webisa.webdatacommons.org/202592275

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	Preferably, the gas is molecular oxygen or molecular oxygen diluted with an unreactive gas, such as nitrogen, helium, carbon dioxide, or argon, or diluted with a substantially unreactive gas, such as carbon monoxide or steam.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com