Question: Shady Grove in the state where the first Aldi was opened is located in what county?

full_context: Document 1: Aldi: Country Name Aldi group Since Outlets Germany Aldi Nord 1961 2,339 Aldi Süd 1962 1,850 Australia Aldi Süd 457 Austria Hofer Süd 1968 430 Belgium Aldi Nord 1973 449 Denmark Aldi Nord 1977 220 France Aldi Marché Nord 899 Hungary Aldi Süd 2008 100 Ireland Aldi Süd 1999 111 Luxembourg Aldi Nord 1990 12 Netherlands Aldi Nord 498 Poland Aldi Nord 2008 113 Portugal Aldi Nord 2006 53 Slovenia Hofer Süd 2005 80 Spain Aldi Nord 2002 266 Switzerland Aldi Suisse Süd 2005 180 United Kingdom Aldi UK Süd 1990 726 United States Aldi US Süd 1976 1,600 Trader Joe's Nord 1979 418 total number of Aldi Nord stores 4,843 total number of Trader Joe's stores 418 total number of Aldi Süd stores 5,105 combined total of Aldi stores 10,366
Document 2: Bear Grove Township, Guthrie County, Iowa: Bear Grove Township is one of seventeen townships in Guthrie County, Iowa, United States. It is located WSW of Guthrie Center just west of Sutcliff Woodland. As of the 2010 census, its population was 160.
Document 3: South Grove Township, DeKalb County, Illinois: South Grove Township is one of nineteen townships in DeKalb County, Illinois, USA. As of the 2010 census, its population was 512 and it contained 209 housing units. South Grove Township was renamed from Vernon Township on November 20, 1850.
Document 4: Shady Grove, Trousdale County, Tennessee: Shady Grove is an unincorporated community in Trousdale County, Tennessee, United States. Shady Grove is southeast of downtown Hartsville. As Hartsville and Trousdale County form a consolidated city-county government, Shady Grove is under the jurisdiction of Hartsville.
Document 5: Aldi: Country Name Aldi group Since Outlets Germany Aldi Nord 1961 2,298 Aldi Süd 1962 1,880 Australia Aldi Süd 480 Austria Hofer Süd 1968 470 Belgium Aldi Nord 1973 457 Denmark Aldi Nord 1977 222 France Aldi Marché Nord 891 Hungary Aldi Süd 2008 130 Ireland Aldi Süd 1999 130 Luxembourg Aldi Nord 1990 12 Netherlands Aldi Nord 491 Poland Aldi Nord 2008 118 Portugal Aldi Nord 2006 48 Slovenia Hofer Süd 2005 80 Spain Aldi Nord 2002 264 Switzerland Aldi Suisse Süd 2005 190 United Kingdom Aldi UK Süd 1990 740 United States Aldi US Süd 1976 1,670 total number of Aldi Nord stores 4,789 total number of Aldi Süd stores International 3,880 total number of Aldi Süd stores 5,760 combined total of Aldi stores 14,429
Document 6: Trader Joe's: Trader Joe's Trader Joe's in Buffalo, New York Type Private Industry Retail (grocery) Founded 1958; 60 years ago (1958) (as Pronto Market) 1967 (1967) (as Trader Joe's) Pasadena, California, USA Founder Joe Coulombe Headquarters Monrovia, California, U.S. Number of locations 474 (as of 12 October 2017) Key people Dan Bane, Chairman & CEO Products Private label staple foods, organic foods and specialty products Revenue US $13 billion (2015) Number of employees 38,000 + Parent ALDI Nord Website traderjoes.com
Document 7: Aldi: In much of Australia, Aldi filled a void in the discount supermarket business that arose when the discount grocery chain Franklins went out of business. Aldi opened its first store in Sydney, 2001 and has grown rapidly since, maintaining a 12.6% market share as of early 2016.
Document 8: Aldi: Aldi launched in Great Britain, on 5 April 1990, when it opened its first store there in Stechford, Birmingham, using the wholly owned English registered company of Aldi Stores Limited and Aldi sales in Britain grew consistently. In October 2013, Aldi opened the 300th store in Great Britain. By 2017 Aldi had over 600 stores there, and was opening them at a rate of more than one a week with the aim of having a thousand stores by 2022.
Document 9: Island Grove Township, Gage County, Nebraska: Island Grove Township is one of twenty-four townships in Gage County, Nebraska, United States. The population was 103 at the 2000 census. A 2006 estimate placed the township's population at 103.
Document 10: Shady Grove, Iowa: Shady Grove is a former townsite and unincorporated community in Buchanan County, Iowa, United States, between the cities of Brandon and Jesup. Settlement of Shady Grove began in 1857, but with the advent of rural migration, the population had dropped to 25 by the 1950s. New housing developments begun during the 1990s and 2000s, however, have caused the empty community to be reborn, causing controversy along the way.
Document 11: Aldi: Aldi started to expand internationally in 1967, when Aldi Süd acquired the grocery chain Hofer in Austria; Aldi Nord opened its first stores abroad in the Netherlands in 1973, and other countries followed. In 1976, Aldi opened its first store in the United States in Iowa, and, in 1979, Aldi Nord acquired Trader Joes. After German reunification and the fall of the Iron Curtain, Aldi experienced a rapid expansion. The brothers retired as CEOs in 1993; control of the companies was placed in the hands of private family foundations, the Siepmann Foundation (Aldi Süd) and the Markus Foundation (Aldi Nord, Trader Joe's).
Document 12: Liberty Grove, Delta County, Texas: Liberty Grove is a ghost town in Delta County, Texas, United States. The community was settled by 1854, the year its school opened. The farming community included the school and a cemetery as of 1936. In 1966, the community had approximately 25 residents. The community's cemetery was relocated in 1989, and the community was subsequently abandoned and flooded by Cooper Lake. A campsite in Cooper Lake State Park bears the community's name.
Document 13: Shady Grove, McIntosh County, Oklahoma: Shady Grove is a census-designated place (CDP) in McIntosh County, Oklahoma, United States. The population was 199 at the 2010 census, a decrease of 14.4 percent from 229 in 2000.
Document 14: Karl Albrecht: Karl and Theo Albrecht were born and raised in a Catholic family in modest circumstances in Essen, Germany. Their father, Karl Sr, was employed as a miner and later as a baker's assistant. Their mother Anna, née Siepmann, had a small grocery store in the workers' quarter of Schonnebeck, a suburb of Essen. Theo completed an apprenticeship in his mother's store, while Karl worked in a delicatessen shop. Karl served in the Wehrmacht during World War II and was wounded on the Eastern Front. After the war, the brothers jointly took over their mother's business and founded Albrecht KG. They separated that company in 1961 into Aldi Nord, covering the part of Germany north of the Ruhr under Theo Albrecht, and Aldi Süd under Karl. The first Aldi (short for Albrecht Discount) was opened in 1962.
Document 15: Balltown, Iowa: Balltown is a city in Dubuque County, Iowa, United States. It is part of the Dubuque, Iowa Metropolitan Statistical Area. The population was 68 at the 2010 census, down from 73 at the 2000 census. Balltown is home to Breitbach's Country Dining, Iowa's oldest restaurant and bar, which was founded in 1852 and twice rebuilt by the community, following its destruction by fire in 2007 and 2008.
ground_truth: Buchanan County
sub_queries: where was the first aldi store in the us Answer: Iowa
Shady Grove, Iowa >> located in the administrative territorial entity Answer: Buchanan County