About: http://webisa.webdatacommons.org/153555429

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	taught that air is a combination of nitrogen, oxygen, and all of the other gasses.??? 78% nitrogen (atomic weight of 28), 21% oxygen
http://www.w3.org/ns/prov#wasQuotedFrom	benchrest.com