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Ostrava is a city in the Czech Republic. It is the third largest city in the country and is located in the north-east of the country. Mirek Topolánek is a politician who served as Prime Minister of the Czech Republic from 2006 to 2009. He was also a member of the Senate of the Czech Republic from 2008 to 2010. Topolánek represented the city of Ostrava in the Senate.