Question: In what building is the sponsor of the 2017–18 EuroLeague headquartered?

Context paragraphs:
Turkish Airlines: Turkish Airlines (Turkish: "Türk Hava Yolları") () is the national flag carrier airline of Turkey, headquartered at the Turkish Airlines General Management Building on the grounds of Atatürk Airport in Yeşilköy, Bakırköy, Istanbul.  s of 2017 , it operates scheduled services to 302 destinations in Europe, Asia, Africa, and the Americas, making it the fourth-largest carrier in the world by number of destinations.  It serves more destinations non-stop from a single airport than any other airline in Europe.  Turkish Airlines flies to 120 countries, more than any other airline.  With an operational fleet of fourteen cargo aircraft, the airline's cargo division serves 64 destinations.  Istanbul Atatürk Airport is its main base, and there are secondary hubs at Esenboğa International Airport, Sabiha Gökçen International Airport, and Adnan Menderes Airport.  Turkish Airlines has been a member of the Star Alliance network since 1 April 2008.

2017 ABA League Playoffs: The 2017 ABA League Playoffs is the play-off tournament that decides the winner of the 2016–17 ABA League season.  The playoffs started on March 18, 2017 and ended on April 13, 2017.  The winner of the play-offs qualifies for the 2017–18 EuroLeague.

Gasparilla Bowl: The Bad Boy Mowers Gasparilla Bowl is an NCAA-sanctioned post-season college football bowl game that has been played annually at Tropicana Field in St. Petersburg, Florida, since 2008.  It was first known as the magicJack St. Petersburg Bowl, after corporate sponsor magicJack.  When Beef O'Brady's became the sponsor in 2009, the official name was changed to the St. Petersburg Bowl Presented by Beef 'O' Brady's and in 2010, the game became known as the Beef 'O' Brady's Bowl.  The restaurant stopped sponsoring the bowl in 2014.  On June 18, 2014, it was announced that Bitcoin payment service provider BitPay would become the new sponsor of the game under a two-year deal, renamed the Bitcoin St. Petersburg Bowl.  Bitcoin, the digital currency, will be accepted for ticket and concession sales at the game as part of the sponsorship, and the sponsorship itself was also paid for using bitcoin.  On April 2, 2015, after one year of sponsorship, BitPay declined to renew sponsorship of the game.  On August 23, 2017, Bad Boy Mowers signed a three-year deal to become the official title sponsor of the rebranded game

2017 VTB United League Playoffs: The 2017 VTB United League Playoffs were the concluding games of the 2016–17 VTB United League to determine the season champions.  The Playoffs started on May 1, 2017.  The champions or the runners-up of the Playoffs qualified for the 2017–18 EuroLeague (depending on the spot of automatically qualified CSKA Moscow).

2017–18 LBA season: The 2017–18 Lega Basket Serie A, will be the 96th season of the Lega Basket Serie A (LBA), known for sponsorship reasons as the Serie A PosteMobile, which is highest-tier level professional basketball league in Italy.  The regular season will start on 1 October 2017 and will end in May 2018, with the playoffs starting in May (dependent on an Italian club qualifying for the 2018 EuroLeague Final Four, the 2018 EuroCup Finals or the 2018 Champions League Playoffs) to finish in June depending on results.

2017–18 EuroLeague: The 2017–18 Turkish Airlines EuroLeague will be the 18th season of the modern era of Euroleague Basketball and the eighth under the title sponsorship of the Turkish Airlines.  It will begin on 12 October 2017.  Including the competition's previous incarnation as the FIBA Europe Champions Cup, this will be the 61st season of the premier competition for European men's clubs.

2017–18 EuroLeague Regular Season: The 2017–18 EuroLeague Regular Season are played from 12 October 2017 to 6 April 2018.  A total of 16 teams will compete in the regular season to decide the eight places of the playoffs.

2018 EuroLeague Final Four: The 2018 EuroLeague Final Four will be the concluding EuroLeague Final Four tournament of the 2017–18 EuroLeague season, the 61st season of Europe's premier club basketball tournament, and the 18th season since it is organised by Euroleague Basketball.  The Final Four will be played at the Kombank Arena in Belgrade, Serbia, in May 2018.

List of 2017–18 EuroLeague transactions: This is a list of all personnel changes for the 2017 EuroLeague off-season and 2017–18 EuroLeague season.

2017–18 EuroLeague Women: The 2017–18 EuroLeague Women will be the 60th edition of the European women's club basketball championship organized by FIBA, and the 21st edition since being rebranded as the EuroLeague Women.

Supporting paragraphs: 2017–18 EuroLeague Turkish Airlines
Answer: Turkish Airlines General Management Building