Question: In which county is the city sharing a border with the capitol of the state where Borough House Plantation is located?

Knowledge 1: Borough House Plantation
Borough House Plantation, also known as Borough House, Hillcrest Plantation and Anderson Place, is an historic plantation on South Carolina Highway 261, north of its intersection with U.S. Route 76/US Route 378 in Stateburg, in the High Hills of Santee near Sumter, South Carolina. A National Historic Landmark, the plantation is noted as the largest assemblage of high-style pisé (rammed earth) structures in the United States. The main house and six buildings on the plantation were built using this technique, beginning in 1821. The plantation is also notable as the home of Confederate Army General Richard H. Anderson. [SEP] Knowledge 2: Charleston, South Carolina
Although the city lost the status of state capital to Columbia in 1786, Charleston became even more prosperous in the plantation-dominated economy of the post-Revolutionary years. The invention of the cotton gin in 1793 revolutionized the processing of this crop, making short-staple cotton profitable. It was more easily grown in the upland areas, and cotton quickly became South Carolina's major export commodity. The Piedmont region was developed into cotton plantations, to which the sea islands and Lowcountry were already devoted. Slaves were also the primary labor force within the city, working as domestics, artisans, market workers, and laborers. [SEP] Knowledge 3: WWNQ
WWNQ is a radio station licensed to Forest Acres, South Carolina, serving the Columbia, South Carolina market. Owned by Midlands Media Group LLC, the station broadcasts a country music format branded as 94.3 The Dude. [SEP] Knowledge 4: Forest Acres, South Carolina
Forest Acres is a city in Richland County, South Carolina, United States. The population was 10,361 at the 2010 census. It is part of the Columbia, South Carolina, Metropolitan Statistical Area.
Knowledge 1: Charleston, South Carolina
Although the city lost the status of state capital to Columbia in 1786, Charleston became even more prosperous in the plantation-dominated economy of the post-Revolutionary years. The invention of the cotton gin in 1793 revolutionized the processing of this crop, making short-staple cotton profitable. It was more easily grown in the upland areas, and cotton quickly became South Carolina's major export commodity. The Piedmont region was developed into cotton plantations, to which the sea islands and Lowcountry were already devoted. Slaves were also the primary labor force within the city, working as domestics, artisans, market workers, and laborers. [SEP] Knowledge 2: WWNQ
WWNQ is a radio station licensed to Forest Acres, South Carolina, serving the Columbia, South Carolina market. Owned by Midlands Media Group LLC, the station broadcasts a country music format branded as 94.3 The Dude. [SEP] Knowledge 3: Borough House Plantation
Borough House Plantation, also known as Borough House, Hillcrest Plantation and Anderson Place, is an historic plantation on South Carolina Highway 261, north of its intersection with U.S. Route 76/US Route 378 in Stateburg, in the High Hills of Santee near Sumter, South Carolina. A National Historic Landmark, the plantation is noted as the largest assemblage of high-style pisé (rammed earth) structures in the United States. The main house and six buildings on the plantation were built using this technique, beginning in 1821. The plantation is also notable as the home of Confederate Army General Richard H. Anderson. [SEP] Knowledge 4: Forest Acres, South Carolina
Forest Acres is a city in Richland County, South Carolina, United States. The population was 10,361 at the 2010 census. It is part of the Columbia, South Carolina, Metropolitan Statistical Area.
Knowledge 1: Charleston, South Carolina
Although the city lost the status of state capital to Columbia in 1786, Charleston became even more prosperous in the plantation-dominated economy of the post-Revolutionary years. The invention of the cotton gin in 1793 revolutionized the processing of this crop, making short-staple cotton profitable. It was more easily grown in the upland areas, and cotton quickly became South Carolina's major export commodity. The Piedmont region was developed into cotton plantations, to which the sea islands and Lowcountry were already devoted. Slaves were also the primary labor force within the city, working as domestics, artisans, market workers, and laborers. [SEP] Knowledge 2: WWNQ
WWNQ is a radio station licensed to Forest Acres, South Carolina, serving the Columbia, South Carolina market. Owned by Midlands Media Group LLC, the station broadcasts a country music format branded as 94.3 The Dude. [SEP] Knowledge 3: Forest Acres, South Carolina
Forest Acres is a city in Richland County, South Carolina, United States. The population was 10,361 at the 2010 census. It is part of the Columbia, South Carolina, Metropolitan Statistical Area. [SEP] Knowledge 4: Australia
Each state and major mainland territory has its own parliament — unicameral in the Northern Territory, the ACT and Queensland, and bicameral in the other states. The states are sovereign entities, although subject to certain powers of the Commonwealth as defined by the Constitution. The lower houses are known as the Legislative Assembly (the House of Assembly in South Australia and Tasmania); the upper houses are known as the Legislative Council. The head of the government in each state is the Premier and in each territory the Chief Minister. The Queen is represented in each state by a governor; and in the Northern Territory, the Administrator. In the Commonwealth, the Queen's representative is the Governor-General.The Commonwealth Parliament also directly administers the following external territories: Ashmore and Cartier Islands; Australian Antarctic Territory; Christmas Island; Cocos (Keeling) Islands; Coral Sea Islands; Heard Island and McDonald Islands; and Jervis Bay Territory, a naval base and sea port for the national capital in land that was formerly part of New South Wales. The external territory of Norfolk Island previously exercised considerable autonomy under the Norfolk Island Act 1979 through its own legislative assembly and an Administrator to represent the Queen. In 2015, the Commonwealth Parliament abolished self-government, integrating Norfolk Island into the Australian tax and welfare systems and replacing its legislative assembly with a council. Macquarie Island is administered by Tasmania, and Lord Howe Island by New South Wales.

Answer: Richland County