About: http://webisa.webdatacommons.org/318909196

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	A blend of gases including argon, carbon dioxide, nitrogen and a quantity of oxygen that does not exceed 5% and is not less than 5 PPM (parts per million).
http://www.w3.org/ns/prov#wasQuotedFrom	google.com