Question: What is the largest city in the country that contains the village of Olszewko?

full_context: Document 1: Romania: Romania ( ; Romanian: "România" ) is a sovereign state located in Southeastern Europe. It borders the Black Sea, Bulgaria, Ukraine, Hungary, Serbia, and Moldova. It has an area of 238397 km2 and a temperate-continental climate. With almost 20 million inhabitants, the country is the seventh most populous member state of the European Union. Its capital and largest city, Bucharest, is the sixth-largest city in the EU, with 1,883,425 inhabitants as of 2011.
Document 2: Old Town Market Place, Warsaw: Warsaw's Old Town Market Place (Polish: "Rynek Starego Miasta" ) is the center and oldest part of the Old Town of Warsaw, capital of Poland. Immediately after the Warsaw Uprising, it was systematically blown up by the German Army. After World War II, the Old Town Market Place was restored to its prewar appearance.
Document 3: Olszewko, Masovian Voivodeship: Olszewko is a village in the administrative district of Gmina Kuczbork-Osada, within Żuromin County, Masovian Voivodeship, in east-central Poland. It lies approximately 4 km south of Kuczbork-Osada, 10 km east of Żuromin, and 114 km north-west of Warsaw.
Document 4: Silesia: Silesia ( ; Polish: "Śląsk" ; Czech: "Slezsko" ; German:    ] ; Silesian German: "Schläsing"; Silesian: "Ślůnsk" [ɕlonsk] ; Lower Sorbian: "Šlazyńska" ; Upper Sorbian: "Šleska" ; Latin: "Silesia" ) is a region of Central Europe located mostly in Poland, with small parts in the Czech Republic and Germany. Its area is about 40,000 km2 , and its population about 8,000,000. Silesia is located along the Oder River. It consists of Lower Silesia and Upper Silesia.
Document 5: Wrzosówka, Świętokrzyskie Voivodeship: Wrzosówka is a village in the administrative district of Gmina Małogoszcz, within Jędrzejów County, Świętokrzyskie Voivodeship, in south-central Poland. It lies approximately 5 km north of Małogoszcz, 25 km north of Jędrzejów, and 25 km west of the regional capital Kielce.
Document 6: List of companies of Poland: Poland is a country in Central Europe, situated between the Baltic Sea in the north and two mountain ranges (the Sudetes and Carpathian Mountains) in the south. Bordered by Germany to the west; the Czech Republic and Slovakia to the south; Ukraine and Belarus to the east; and the Baltic Sea, Kaliningrad Oblast (a Russian exclave) and Lithuania to the north. The total area of Poland is 312679 km2 , making it the 69th largest country in the world and the 9th largest in Europe. With a population of over 38.5 million people, Poland is the 34th most populous country in the world, the 8th most populous country in Europe and the sixth most populous member of the European Union. Poland is a unitary state divided into 16 administrative subdivisions, and its capital and largest city is Warsaw. Other metropolises include Kraków, Wrocław, Poznań, Gdańsk and Szczecin.
Document 7: Geography of Bratislava: Bratislava, the capital city of Slovakia, is situated in Central Europe and it is located in the extreme south-west within Slovakia. The city borders Austria in the west and Hungary in the south making it the only national capital in the world to border two foreign countries. State border with the Czech Republic is only 62 kilometres (38.5 mi) distant. Bratislava lies on the foothills of the Little Carpathians mountains and the city straddles both banks of the Danube River. The city has a total area of 367.58 square kilometres (141.9 mi²), making it the second largest city in Slovakia by area (after the township of Vysoké Tatry). Geomorphologically the city covers the southern tip of the Záhorie Lowland, the entire range of the Devín Carpathians, small westernmost part of the Pezinok Carpahians and the northern tip of the Danubian Lowland.
Document 8: Polonia (train): The Polonia is a EuroCity (EC) express train. It was introduced in 1997, to supplement the existing EuroCity train, the "Sobieski", on the international route between Vienna, the capital of Austria, and Warsaw, the capital of Poland, via the Czech Republic.
Document 9: Oksa: Oksa is a village in Jędrzejów County, Świętokrzyskie Voivodeship, in south-central Poland. It is the seat of the gmina (administrative district) called Gmina Oksa. It lies approximately 18 km north-west of Jędrzejów and 41 km south-west of the regional capital Kielce. The village has an approximate population of 890.
Document 10: Krusze, Masovian Voivodeship: Krusze is a village in the administrative district of Gmina Klembów, within Wołomin County, Masovian Voivodeship, in east-central Poland. It lies approximately 6 km north-east of Klembów, 13 km north-east of Wołomin, and 35 km north-east of Warsaw.
Document 11: Ostrava: Ostrava (Polish: "Ostrawa" , German: "Ostrau" or "Mährisch Ostrau") is a city in the north-east of the Czech Republic and is the capital of the Moravian-Silesian Region. It is 15 km from the border with Poland, at the meeting point of four rivers: the Odra, Opava, Ostravice and Lučina. In terms of both population and area Ostrava is the third largest city in the Czech Republic, the second largest city in Moravia, and the largest city in Czech Silesia; it straddles the border of the two historic provinces of Moravia and Silesia. The population was around 300,000 in 2013. The wider conurbation – which also includes the towns of Bohumín, Doubrava, Havířov, Karviná, Orlová, Petřvald and Rychvald – is home to around 500,000 people, making it the largest urban area in the Czech Republic apart from the capital, Prague.
Document 12: Mokra Wieś, Masovian Voivodeship: Mokra Wieś is a village in the administrative district of Gmina Tłuszcz, within Wołomin County, Masovian Voivodeship, in east-central Poland. It lies approximately 6 km north-east of Tłuszcz, 23 km north-east of Wołomin, and 44 km north-east of Warsaw.
Document 13: Odrzywół, Przysucha County: Odrzywół is a village in Przysucha County, Masovian Voivodeship, in east-central Poland. It is the seat of the gmina (administrative district) called Gmina Odrzywół. It lies in northern part of historic Lesser Poland, approximately 18 km north of Przysucha and 84 km south of Warsaw. The village has an approximate population of 1,300.
Document 14: Hucisko, Zawiercie County: Hucisko is a village in the administrative district of Gmina Włodowice, within Zawiercie County, Silesian Voivodeship, in southern Poland. It lies approximately 6 km north-east of Włodowice, 12 km north-east of Zawiercie, and 52 km north-east of the regional capital Katowice.
Document 15: Warsaw: Warsaw (Polish: "Warszawa" ; see also other names) is the capital and largest city of Poland. It stands on the Vistula River in east-central Poland, roughly 260 km from the Baltic Sea and 300 km from the Carpathian Mountains. Its population is officially estimated at 1.750 million residents within a greater metropolitan area of 3.101 million residents, which makes Warsaw the 9th most-populous capital city in the European Union. The city limits cover 516.9 km2 , while the metropolitan area covers 6100.43 km2 .
ground_truth: Warsaw