Partnerships with airlines including Lufthansa and Poland’s LOT remain key even as Turkish Airlines builds its Istanbul base into a global hub with an eye to the success of Gulf operators Dubai-Emirates, Qatar Airways Ltd. and Abu Dhabi’s Etihad Airways PJCS, Kotil said.
Take context from the input text and decide on the accurate relationship between 'Turkish Airlines' and 'Istanbul' from the options provided.
Options: chief executive officer, creator, parent organization, headquarters location