About: http://webisa.webdatacommons.org/311619416

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	At least the oldest ones are only 20 years old, so they will still be around for a few more.
http://www.w3.org/ns/prov#wasQuotedFrom	airliners.net