query: headquarters_location union of free democrats
supports: Stefan Antonov Sofiyanski (born November 7, 1951 in Sofia) has been a leading member of the Union of Democratic Forces in Bulgaria. He served as interim Prime Minister in 1997 and was a three-term Mayor of Sofia. Greece (' ), officially the Hellenic Republic (Greek: ' ), historically also known as Hellas ("" ), is a country in southeastern Europe. 
  Greece's population is approximately 10.955 million as of 2015. Athens is the nation's capital and largest city, followed by Thessaloniki. Sofia (or or ;) ("Sofiya",) is the capital and largest city of Bulgaria. The city has a population of 1.26 million, while 1.68 million people live in its metropolitan area. The city is located at the foot of Vitosha Mountain in the western part of the country, within less than drive from the Serbian border. Its location in the centre of the Balkan peninsula means that it is the midway between the Black Sea and the Adriatic Sea, whereas the Aegean Sea is the closest to it. Turkey, officially the Republic of Turkey (Turkish: ), is a transcontinental country in Eurasia, mainly in Anatolia in Western Asia, with a smaller portion on the Balkan peninsula in Southeast Europe. Turkey is a democratic, secular, unitary, parliamentary republic with a diverse cultural heritage. Turkey is bordered by eight countries: Greece to the west; Bulgaria to the northwest; Georgia to the northeast; Armenia, the Azerbaijani exclave of Nakhchivan and Iran to the east; and Iraq and Syria to the south. The Aegean Sea is to the west, the Black Sea to the north, and the Mediterranean Sea to the south. The Bosphorus, the Sea of Marmara, and the Dardanelles, which together form the Turkish Straits, divide Thrace and Anatolia; they also separate Europe and Asia. Turkey's location has given it geopolitical and strategic importance throughout history. Sergei Dmitrievich Stanishev (born May 5, 1966) is a Bulgarian politician who was the leader of the Bulgarian Socialist Party (BSP) from 2001 until 2014. He is the President of the Party of European Socialists, the second-largest party in the European Parliament since 2011. He was Prime Minister of Bulgaria from 2005 to 2009. The Bulgarian People's Union ("Balgarski Naroden Sajuz") was an electoral alliance (center-right) in Bulgaria. It contested only one legislative election: that on 25 June 2005. It won 5.7% of the popular vote and 13 out of 240 seats. The Union was composed by the Bulgarian Agrarian People's Union-People's Union ("Blgarski Zemedelski Naroden Sajuz-Naroden Sajuz"), the Internal Macedonian Revolutionary Organization - Bulgarian National Movement ("Vatrešna Makedonska Revolucionna Organizacija-Blgarsko Nacionalno Dviženie") and the Union of Free Democrats ("Sajuz na svobodnite demokrati"). The Black Sea is a body of water between Eastern Europe and Western Asia, bounded by Bulgaria, Georgia, Romania, Russia, Turkey, and Ukraine. It is supplied by a number of major rivers, such as the Danube, Dnieper, Rioni, Southern Bug, and Dniester. The Black Sea has an area of (not including the Sea of Azov), a maximum depth of , and a volume of . It is constrained by the Pontic Mountains to the south and by the Caucasus Mountains to the east, and features a wide shelf to the northwest. The longest east-west extent is about . Parliamentary elections were held in Bulgaria on June 25, 2005, for the 240 members of the National Assembly. According to exit polls, the Socialists had a lead with around 31%, but without a majority, necessitating the creation of a coalition. The National Movement for Simeon II, in power before the election, was in second place, with around 21%. Following the election, Socialist Party leader Sergei Stanishev became Prime Minister. Romania is a sovereign state located in Southeastern Europe. It borders the Black Sea, Bulgaria, Ukraine, Hungary, Serbia, and Moldova. It has an area of and a temperate-continental climate. With 19.94 million inhabitants, the country is the seventh-most-populous member state of the European Union. The capital and largest city, Bucharest, with its 1,883,425 inhabitants is the sixth-largest city in the EU. The Union of Free Democrats ( Bulgarian :     , Sajuz na svobodnite demokrati ) is a conservative political party in Bulgaria , led by Stefan Sofiyanski . It contested the 2001 elections as part of the United Democratic Forces electoral alliance , which picked up 51 of 240 seats . It is nowadays part of the Bulgarian People 's Union , that at the Bulgarian parliamentary election , 2005 won 5.7 % of the popular vote and 13 out of 240 seats . Serbia, officially the Republic of Serbia, is a sovereign state situated at the crossroads of Central and Southeast Europe, covering the southern part of the Pannonian Plain and the central Balkans. Relative to its small territory, it is a diverse country distinguished by a "transitional" character, situated along cultural, geographic, climatic and other boundaries. Serbia is landlocked and borders Hungary to the north; Romania and Bulgaria to the east; Macedonia to the south; and Croatia, Bosnia-Herzegovina, and Montenegro to the southwest; it also claims a border with Albania through the disputed territory of Kosovo. Serbia numbers around 7 million residents, and its capital, Belgrade, ranks among the largest cities in Southeast Europe. Bulgaria (tr. '), officially the Republic of Bulgaria (tr. '), is a country in southeastern Europe. It is bordered by Romania to the north, Serbia and Macedonia to the west, Greece and Turkey to the south, and the Black Sea to the east. With a territory of , Bulgaria is Europe's 16th-largest country. The United Democratic Forces (/ODS) were a center-right electoral alliance in Bulgaria, led by the Union of Democratic Forces.
candidates: alliance athens belgrade born bucharest bulgaria central europe greece hungary iraq moldova romania russia sofia thessaloniki turkey ukraine
answer: sofia