About: http://webisa.webdatacommons.org/236759062

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	Mainly it is an inert gas called nitrogen, mixed with around 20% oxygen, which is what we need, and other gases such as carbon dioxide, which is being blamed for everything, it seems.
http://www.w3.org/ns/prov#wasQuotedFrom	carbonblack.com.au