About: http://webisa.webdatacommons.org/401019896

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	The purge gas generally comprises an inert gas, such as argon (Ar), helium (He) and the like, or a mixture thereof.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es