About: http://webisa.webdatacommons.org/137723849

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 insulation layer may be air or a non-reactive gas such as helium, nitrogen, or sulfur hexafluoride.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com.au