About: http://webisa.webdatacommons.org/277009243

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 activation is carried out in the atmosphere, a vacuum, inert gas such as nitrogen or Argon or hydrogen gas.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com