Question: What county is Robert Lyon's place death located in?

full_context: Document 1: 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 2: Rock River (Mississippi River tributary): The river begins with three separate branches which flow into the Horicon Marsh. The northermost branch, the West Branch, begins just to the west of the village of Brandon in Fond du Lac County, Wisconsin and flows east and then south to Horicon Marsh. The South Branch rises north of Fox Lake in Dodge County and flows east through Waupun to the marsh. The East Branch rises southeast of Allenton in Washington County just west of the Niagara Escarpment, and flows north and west through Theresa to the marsh. Leaving the marsh, it meanders southward to the Illinois border ending about 300 miles later at the Mississippi River at the Quad Cities in Illinois and Iowa. During its course it passes through Watertown, collects the Crawfish River in Jefferson, and receives the Bark River at Fort Atkinson. In northern Rock County it receives the Yahara River, and flows southward through Janesville and Beloit into northern Illinois, where it receives the Pecatonica River 5 miles (8 km) south of the state line.
Document 3: Robert Lyon (politician): His father, George Lyon, was a Scottish captain in the British army, who settled in Richmond, Ontario. His oldest brother was George Byron Lyon, another mayor of Ottawa.
Document 4: Richard Franklin Preston: He was born in Leeds County, Canada West, the son of Anthony Preston, an Irish immigrant, and was educated at Queen's University. His older brother Robert Henry Preston was also a physician and politician. Preston ran unsuccessfully for the Lanark North seat in the House of Commons in 1900 and 1904. He served as a minister without portfolio in the provincial cabinet from 1914 to 1919. He was first elected to the House of Commons in a 1922 by-election held after the death of John Alexander Stewart.
Document 5: George Snider (politician): He was born in Eglington, Upper Canada in 1813, the son of Martin Snider, a United Empire Loyalist of German descent, and educated in Toronto. He was the agent for the sale of Crown Lands on the Toronto and Sydenham (later Owen Sound) Road from 1848 to 1854. He served as the first sheriff for Grey County from 1853 to 1863. In 1863, he was an unsuccessful candidate for a seat in the assembly for the Province of Canada. Snider was also mayor of Owen Sound.
Document 6: Robert John Fleming (Canadian politician): Born in Toronto, Robert John Fleming was of Irish ancestry, the son of William and Jane (Cauldwell) Fleming. Educated in Toronto public schools he first entered the business world in real estate. From there he moved on to the Toronto Railway Company becoming the general manager in 1905. He was also a member of the Orange Order in Canada.
Document 7: Arlington, Illinois: Arlington is a village in Bureau County, Illinois, United States. The population was 193 at the 2010 census. It is part of the Ottawa–Streator Micropolitan Statistical Area, located east of the Quad Cities, north of Peoria and Galesburg, west of LaSalle and Peru, and southwest of Rockford and Chicago.
Document 8: 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 9: Bob Lyon: Bob Lyon, an American politician, is a former Kansas State Senator from the city of Winchester. A civil engineer, Lyon is a graduate of the University of Virginia and George Washington University.
Document 10: George Lyon (Canadian politician): George Lyon (1790 – 26 March 1851) was a captain in the British Army and a Canadian businessman and politician.
Document 11: Geography of Illinois: Illinois is in the midwestern United States. Surrounding states are Wisconsin to the north, Iowa and Missouri to the west, Kentucky to the south, and Indiana to the east. Illinois also borders Michigan, but only via a northeastern water boundary in Lake Michigan. Nearly the entire western boundary is the Mississippi River, except for a few areas where the river has changed course. Illinois' southeastern and southern boundary is along the Wabash River and the Ohio River. Whereas, its northern boundary and much of its eastern boundary are straight survey (longitudinal and latitudinal) lines. Illinois has a maximum north - south distance of 390 miles (630 km) and 210 miles (340 km) east - west. Its total area is 57,918 square miles (150,010 km).
Document 12: Shippingsport Bridge: Shippingsport Bridge has been the name of three similarly-located bridges over the Illinois River in LaSalle Township, LaSalle County, Illinois: an 1872 swing span bridge, a 1929 vertical-lift bridge nearby, and a 2003 bridge in the same location as the 1929 bridge. The third bridge still exists and carries Illinois Route 351 (IL 351).
Document 13: Alan Tonks: Tonks is the son of the late Chris Alexander Tonks (1917-2006), who was a reeve (1957-1960) , deputy reeve, Board of Control member and alderman in what was first the Township and then the Borough of York (1969-1988) in Metropolitan Toronto. After graduating from York Memorial Collegiate Institute Tonk's father ran Tonks Hardware and Electric at 452 Rogers Road founded by his grandfather. Alan Tonks attended York University where he earned a Master's degree in political economy and the University of Toronto where he received a master's degree in education. He spent time working for a Canadian aid agency in Jamaica before becoming a junior high teacher for the Scarborough Board of Education for several years.
Document 14: 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.
Document 15: Oklahoma: Two inland ports on rivers serve Oklahoma: the Port of Muskogee and the Tulsa Port of Catoosa. The only port handling international cargo in the state, the Tulsa Port of Catoosa is the most inland ocean-going port in the nation and ships over two million tons of cargo each year. Both ports are located on the McClellan-Kerr Arkansas River Navigation System, which connects barge traffic from Tulsa and Muskogee to the Mississippi River via the Verdigris and Arkansas rivers, contributing to one of the busiest waterways in the world.
ground_truth: LaSalle County
sub_queries: Robert Lyon >> place of death Answer: Ottawa
Ottawa >> located in the administrative territorial entity Answer: LaSalle County