About: http://webisa.webdatacommons.org/340295056

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	For example, air which has been substantially enriched in oxygen is used in various industries, such as chemical processing, steel mills, paper mills, and in lead and gas production operations.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com