About: http://webisa.webdatacommons.org/127878574

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	Other components such as nitrogen and argon can also be added to the gaseous material.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com