About: http://webisa.webdatacommons.org/356315942

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	Oxygen is employed in the stoichiometric amount or in excess. It is also possible to employ oxygen mixed with an inert gas, such as nitrogen or carbon dioxide.
http://www.w3.org/ns/prov#wasQuotedFrom	docstoc.com