About: http://webisa.webdatacommons.org/103179680

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	Air - a colorless, odorless, tasteless, gaseous mixture; mainly nitrogen (approximately 78 percent) and oxygen (approximately 21 percent), with lesser amounts of argon, carbon dioxide, hydrogen, neon, helium, and other gases.
http://www.w3.org/ns/prov#wasQuotedFrom	globalspec.com