Question: In which county is the city where David Berger works?

full_context: Document 1: Ottawa, Kansas: Ottawa is a city in, and the county seat of, Franklin County, Kansas, United States. It is located on both banks of the Marais des Cygnes River near the center of Franklin County. As of the 2010 census, the city population was 12,649.
Document 2: David Berger (Canadian politician): He was born in Ottawa, Ontario, the eldest son of Sam Berger. He attended Ashbury College before receiving a Bachelor of Arts degree in 1971 from the University of Toronto and a Bachelor of Civil Law in 1975 from McGill University. From 1975 to 1979, he was an Executive Vice-President for the Montreal Alouettes Football Club. From 1978 to 1979, he was President of the Canadian Football League. He was elected to the House of Commons of Canada for the riding of Laurier in the 1979 federal election. A Liberal, he was re-elected four more times in 1980, 1984, 1988, and 1993 (in the riding of Saint-Henri—Westmount). In 1982, he was the Parliamentary Secretary to the Minister of State (Small Businesses and Tourism). From 1982 to 1984, he was the Parliamentary Secretary to the Minister of Consumer and Corporate Affairs. He resigned in 1994 after being appointed the Canadian ambassador to Israel and was at the same time High Commissioner of Canada to Cyprus. Berger served until 1999 and was replaced by Michael Dougall Bell. He backed Stéphane Dion at the 2006 Liberal Party of Canada leadership convention.
Document 3: Kevin S. MacLeod: Born in North Sydney, Nova Scotia, MacLeod studied at Boston University and Carleton University, where he received both his bachelor's degree in history and political science and a master's degree in international affairs, before moving on to the University of Burgundy in Dijon, France. After his return from there, MacLeod served for 10 years as an administrative assistant in the House of Commons of Canada, subsequently acting as a chief of staff for one of the then ministers of the Crown before being employed by the Department of Canadian Heritage for 22 years. Among his accomplishments in that office, MacLeod was appointed as the Chief of Protocol and then authored "A Crown of Maples/la couronne canadienne"an educational book on the Canadian monarchy, published by the heritage department.
Document 4: Ottawa, Illinois: Ottawa is a city located at the confluence of the navigable Illinois River and Fox River in LaSalle County, Illinois, United States. The Illinois River is a conduit for river barges and connects Lake Michigan at Chicago, to the Mississippi River, and North America's 25,000 mile river system. The population estimate was 18,562 as of 2013. It is the county seat of LaSalle County and it is part of the Ottawa-Peru, IL Micropolitan Statistical Area.
Document 5: Pomona, Kansas: Pomona is a city in Franklin County, Kansas, United States. As of the 2010 census, the city population was 832.
Document 6: Washington, Kansas: Washington is a city in, and the county seat of, Washington County, Kansas, United States. As of the 2010 census, the city population was 1,131.
Document 7: Williamsburg Township, Franklin County, Kansas: Williamsburg Township is a township in Franklin County, Kansas, USA. As of the 2000 census, its population was 672. It was named for the small town of Williamsburg.
Document 8: Wichita, Kansas: Wichita (/ ˈwɪtʃɪtɔː / WITCH - i - taw) is the largest city in the U.S. state of Kansas. Located in south - central Kansas on the Arkansas River, it is the county seat of Sedgwick County and the principal city of the Wichita metropolitan area which had an estimated population of 644,610 in 2015. As of 2017, the city of Wichita had an estimated population of 391,586.
Document 9: Hays, Kansas: Hays is a city in and the county seat of Ellis County, Kansas, United States. The largest city in northwestern Kansas, it is the economic and cultural center of the region. As of the 2010 census, the city population was 20,510. It is also a college town, home to Fort Hays State University.
Document 10: Graenum Berger: Graenum Berger (1908–1999) was an American Communal administrator, institutional and communal planner, educator, world traveler, and the founding President of the American Association for Ethiopian Jews.
Document 11: Richard Bergeron: Richard Bergeron (born 1955) is a city councillor from Montreal, Quebec, Canada. He founded Projet Montréal, a municipal political party, and was its leader until 2014. He was the party's mayoralty candidate in the 2005, 2009 and 2013 municipal elections. He is a Montreal City Councillor for the Saint-Jacques district in the Ville-Marie borough and is a member of city council's "Commission sur la mise en valeur du territoire et du patrimoine".
Document 12: David Bergeron: David Bergeron attended Lakeridge High School, after graduating high school he went to college at Stanford University. He finished his career there with two sacks, 176 tackles (16.5 for losses), two forced fumbles, a fumble recovery, an interception, three pass deflections, and a blocked kick.
Document 13: Lyle Vanclief: Born in Ameliasburg, Ontario, he was first elected to the House of Commons of Canada as a Liberal Member of Parliament representing the rural Ontario riding of Prince Edward—Hastings in 1988. He was considered a strong supporter of Prime Minister Jean Chrétien, and was removed from the Canadian Cabinet when Paul Martin succeeded Chrétien as Liberal leader and prime minister in 2003.
Document 14: Horst H. Berger: Berger was born in Liegnitz (Legnica), Lower Silesia, and received the Vordiplom. from the Technische Hochschule of Dresden, then worked at the IBM Laboratories in Böblingen. Afterwards he became a researcher and teacher at the Technical University of Berlin.
Document 15: Ottawa: Ottawa (/ ˈɒtəwə / (listen), / - wɑː /; French pronunciation: ​ (ɔtawa)) is the capital city of Canada. It stands on the south bank of the Ottawa River in the eastern portion of southern Ontario. Ottawa borders Gatineau, Quebec; the two form the core of the Ottawa -- Gatineau census metropolitan area (CMA) and the National Capital Region (NCR). As of 2016, Ottawa had a city population of 934,243 and a metropolitan population of 1,323,783 making it the fourth - largest city and the fifth - largest CMA in Canada.
ground_truth: Franklin County
sub_queries: David Berger >> work location Answer: Ottawa
Ottawa >> located in the administrative territorial entity Answer: Franklin County