Question: What is the population of the town that Manfred Linzmaier was born in?

full_context: Document 1: Manfred Linzmaier: Manfred Linzmaier (born 27 August 1962 in Kufstein) is a retired Austrian footballer. He is now a football manager.
Document 2: LASK Linz: Linzer Athletik-Sport-Klub, commonly known as LASK Linz (] ) or simply LASK, is an Austrian association football club, from the Upper-Austrian state capital Linz. It is the oldest football club hailing from that region, and currently plays in the Austrian Football Bundesliga, the top tier of Austrian football. The club's colours are black and white. The women's football section currently plays in the second highest division of Austrian women's football.
Document 3: Linz: Linz ( ; ] ; Czech: "Linec" ) is the third-largest city of Austria and capital of the state of Upper Austria (German: "Oberösterreich" ). It is in the north centre of Austria, approximately 30 km south of the Czech border, on both sides of the River Danube. The population of the city is , and that of the Greater Linz conurbation is about 271,000.
Document 4: Salzburg: Salzburg (] ; Bavarian: "Såizburg" ; literally: "Salt Fortress") is the fourth-largest city in Austria and the capital of the federal state of Salzburg.
Document 5: David Alaba: David Olatukunbo Alaba (born 24 June 1992) is an Austrian professional footballer who plays for German club Bayern Munich and the Austria national team. He holds Austria's record as the youngest player to play for their senior national team, debuting for them in 2009 as a 17-year-old.
Document 6: Stefan Effenberg: Stefan Effenberg (] ; born 2 August 1968) is a retired German footballer who last managed SC Paderborn. A midfielder, he possessed leadership skills, fantastic passing range, powerful shooting ability, physical strength, but also a fearsome and controversial character.
Document 7: Eisenstadt: Eisenstadt (] ; Hungarian: "Kismarton" , Croatian: "Željezni grad" , "Željezno" , Slovene: "Železno" ) is a city in Austria, the state capital of Burgenland. It has a population of about 14,241 (2016).
Document 8: TipsArena Linz: TipsArena Linz (formerly Linzer Sporthalle and Intersport Arena) is an indoor sports arena, located in Linz, Austria. The capacity of the arena is 6,000 people, for tennis and football events and 2,500, for athletics. The arena opened in September 1974.
Document 9: Burgruine Griffen: The Burg Griffen is a castle on a 130m/427 ft-high limestone mountain above the town of Griffen in the Austrian state of Carinthia.
Document 10: Kufstein: Kufstein is a town in the Austrian state of Tyrol, the administrative seat of Kufstein District. With a population of about 18,400, it is the second largest Tyrolean town after the state capital Innsbruck. The greatest landmark is Kufstein Fortress, first mentioned in the 13th century.
Document 11: Lienz: Lienz (] ) is a medieval town in the Austrian state of Tyrol. It is the administrative centre of the Lienz district, which covers all of East Tyrol. The municipality also includes the cadastral subdivision of "Patriasdorf".
Document 12: Thomas Maier (footballer): Thomas Maier (born 18 April 1998) is an Austrian footballer currently playing for Kapfenberger SV.
Document 13: Bavaria: Bavaria ( German: "Bayern" ] ; Czech: "Bavorsko" ), officially the Free State of Bavaria (German: "Freistaat Bayern" ] ) is a landlocked federal state of Germany, occupying its southeastern corner. With an area of 70,550.19 square kilometres (27,200 sq mi), Bavaria is the largest German state by land area. Its territory comprises roughly a fifth of the total land area of Germany. With 12.9 million inhabitants, it is Germany's second-most-populous state (after North Rhine-Westphalia). Bavaria's capital and largest city, Munich, is the third largest city in Germany.
Document 14: Innsbruck: Innsbruck (] , ] ) is the capital city of Tyrol in western Austria. It is in the Inn valley, at its junction with the Wipp valley, which provides access to the Brenner Pass some 30 km to the south.
Document 15: Styria: Styria (German: Steiermark , ] , Slovene/Croatian: "Štajerska" , Hungarian: "Stájerország" , ) is a state or "Bundesland", located in the southeast of Austria. In area it is the second largest of the nine Austrian federated states, covering 16401 km2 . It borders Slovenia and the Austrian states of Upper Austria, Lower Austria, Salzburg, Burgenland, and Carinthia. The population (as of ) was . The capital city is Graz which had 276,526 inhabitants at the beginning of 2015.
ground_truth: 18,400