About: http://webisa.webdatacommons.org/429598200

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	i agree that northwest and klm might have the closest relationship but there are others which come pretty close, BA and qantas, SR and sabena, Lufthansa and SAS, United.
http://www.w3.org/ns/prov#wasQuotedFrom	airliners.net