Refer to the input text as context and select the correct relationship between 'Tunisair' and 'Tunis' from the available options.
Options: headquarters location, brand, chairperson, distribution format

Tunis — Tunisair will take delivery on August 24 of its new Airbus A330-200 thus bringing the number of its fleet to 30 aircraft, the national carrier announced in a recent press release.
headquarters location