Title: Ankara
Content:  Ankara, historically known as Ancyra and Angora, is the capital of Turkey. Located in the central part of Anatolia, the city has a population of 4.5 million in its urban center and over 5.6 million in Ankara Province, making it Turkey's second-largest city after Istanbul. Serving as the capital of the ancient Celtic state of Galatia (280–64 BC), and later of the Roman province with the same name (25 BC–7th century), the city is very old with various Hattian, Hittite, Lydian, Phrygian, Galatian, Greek, Persian, Roman, Byzantine, and Ottoman archeological sites. The Ottomans made the city the capital first of the Anatolia Eyalet (1393–late 15th century), and then the Angora Vilayet (1867–1922). The historical center of Ankara is a rocky 
Title: Economy of Ankara
Content:  Economy of Ankara covers the issues related to the economy of the city of Ankara, Turkey. Ankara has an historic old town, and although it is not exactly a tourist city, is usually a stop for travelers who go to Cappadocia. The city enjoys an excellent cultural life too, and has several museums. The Anıtkabir is also in Ankara. It is the mausoleum of Atatürk, the founder of the Republic of Turkey. Ankara is the capital city of Turkey and the second largest city in the country after Istanbul. It is located at the heart of both Turkey and Central Anatolia. The population is around 4.5 million. Ankara is the administrative center of Turkey and a huge university town, so it has a large population of government 
Title: Turkey
Content:  Turkey (Türkiye ), officially the Republic of Turkey, is a country located mainly on Anatolia in Western Asia, with a small portion on the Balkans in Southeast Europe. It shares borders with Greece and Bulgaria to the northwest; the Black Sea to the north; Georgia to the northeast; Armenia, Azerbaijan, and Iran to the east; Iraq to the southeast; Syria and the Mediterranean Sea to the south; and the Aegean Sea to the west. Turks form the vast majority of the nation's population and Kurds are the largest minority. Ankara is Turkey's capital, while Istanbul, the Imperial capital, is its largest city and financial centre. One of the 
Title: İzmir
Content:  Izmir (, ; İzmir, ) is a metropolitan city in the western extremity of Anatolia, capital of the province of the same name. It is the third most populous city in Turkey, after Istanbul and Ankara; and the second largest urban agglomeration on the Aegean Sea after Athens. As of the last 31/12/2019 estimation, the city of İzmir had a population of 2,965,900, while İzmir Province had a total population of 4,367,251. Its built-up (or metro) area was home to 3,209,179 inhabitants extending on 9 out of 11 urban districts (all but Urla and Guzelbahce not yet agglomerated) plus Menemen and Menderes largely conurbated. It extends along the outlying waters of the Gulf of İzmir and inland to the north across the Gediz River Delta; to the east along an alluvial plain created by several small streams; and to slightly 
Title: Byzantium
Content:  the capital of the Byzantine Empire, which decorated the city with numerous monuments, some still standing today. With its strategic position, Constantinople controlled the major trade routes between Asia and Europe, as well as the passage from the Mediterranean Sea to the Black Sea. On May 29, 1453, the city fell to the Ottoman Turks, and again became the capital of a powerful state, the Ottoman Empire. The Turks called the city "Istanbul" (although it was not officially renamed until 1930); the name derives from "eis-ten-polin" (Greek: "to-the-city"). To this day it remains the largest and most populous city in Turkey, although Ankara is now the national capital.
Title: Antalya
Content:  Antalya is the fifth-most populous city in Turkey and the capital of Antalya Province. Located on Anatolia's southwest coast bordered by the Taurus Mountains, Antalya is the largest Turkish city on the Mediterranean coast outside the Aegean region with over one million people in its metropolitan area. The city that is now Antalya was first settled around 200 BC by the Attalid dynasty of Pergamon, which was soon subdued by the Romans. Roman rule saw Antalya thrive, including the construction of several new monuments, such as Hadrian's Gate, and the proliferation of neighboring cities. The city has changed hands several times, including to the Seljuk Sultanate in 1207 and an expanding Ottoman Empire in 1391. Ottoman rule brought relative peace and stability for the next five hundred years. The city was occupied by Italy for three years in the aftermath of World War I, but was recaptured by a newly independent Turkey in the War of Independence. Antalya is Turkey's biggest international sea resort, located on the Turkish Riviera. Large-scale development and governmental funding has promoted tourism. A record 13.6 million tourists passed through the city in 2019.
Title: Central business district
Content:  Ankara became the capital of Turkey in the 1920s. Istanbul has remained the main economic center of the country up to this day. Ankara is called as "officer city". Currently, a Central Business District is planned in an area of 262 hectares in Varlık, Altındağ.
Title: Gaziantep
Content:  Gaziantep, previously and still informally called Aintab or Antep , is the capital of Gaziantep Province, in the westernmost part of Turkey's Southeastern Anatolia Region, approximately 185 km east of Adana and 97 km north of Aleppo, Syria. It is thought to be located on the site of ancient Antiochia ad Taurum, and is near ancient Zeugma. As of the 31/12/2019 last estimation, the Metropolitan Province was home to 2,069,364 inhabitants whom 1,721,475 lived in the built-up (or metro) area made of 2 (out of 3) urban districts of Şahinbey and Şehitkamil, as Oğuzeli is not conurbated. It is the sixth-most populous city in Turkey.
Title: Turkish Constitution of 1961
Content:  Article 3 - The Turkish State is an indivisible whole comprising its territory and people. Its official language is Turkish. Its capital is the city of Ankara.
Title: Compendium of postage stamp issuers (Al–Aq)
Content: Dates ; 1920 – 1923 ; Currency ; 40 paras = 1 piastre ; Refer ; Turkey Sited in Anatolia, Angora (now Ankara) is the present capital city of Turkey. The European part of Turkey, including the then capital of Constantinople, was under Allied occupation 1918–1923 following the defeat of Turkey in World War I. A provisional nationalist government was established by Kemal Atatürk at Angora, which he declared to be the new capital. Having expelled the Greek invaders of Asia Minor (1921–1922) and averted a war with Britain (1923), Atatürk was able to proclaim the new republic of Turkey on 28 October 1923 with himself as president. Ankara was confirmed as the capital despite the reinstatement of Constantinople (now Istanbul) as Turkish territory. During the period of the provisional government (1920–1923), various overprints were issued at Angora. In 1922, two sets of definitives were issued (cat. nos A79-A90 and A119-A124). These were replaced by the general Turkish issue (cat. nos 974-1012) of November 1923.

Question: What is the capital of Turkey?
Answer: Ankara.
Ancyra.
Angora.
Ancara.