Question: Which franchise carrier operates aircraft in full British Airways livery and has its main base at OR Tambo International Airport, Johannesburg?
Related documents: [0]  [DOC] British Airways flies to destinations on every inhabited continent. In addition to the comprehensive list of destinations offered by British Airways itself, many more towns and cities can be reached through BA's franchise and subsidiary operations. Together with wholly owned subsidiary BA CityFlyer, franchise carriers Sun Air and Comair operate aircraft in full British Airways livery, offer full BA service and staff wear BA uniform. Bookings are made through British Airways and the carriers are affiliate members of the oneworld alliance. [END] 
[1]  [DOC] Comair Limited is an airline based in South Africa that operates scheduled services on domestic routes as a British Airways franchisee (and an affiliate member of the Oneworld airline alliance). It also operates as a low-cost carrier under its own kulula.com brand. Its main base is OR Tambo International Airport, Johannesburg, and has focus cities at Cape Town International Airport and King Shaka International Airport. Its headquarters are near OR Tambo in the Bonaero Park area of Kempton Park, Ekurhuleni, Gauteng. [END] 
Answer: 
Comair
Comair