Union County
E742737
Union County is a county located in the southeastern corner of South Dakota, known for its agricultural landscape and proximity to the Missouri River and the Iowa and Nebraska borders.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Union County canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7797434 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Union County Context triple: [South Dakota Highway 50, passesThrough, Union County]
-
A.
Union County
Union County is a county in eastern Tennessee that forms part of the Knoxville metropolitan region.
-
B.
Union County
Union County is a suburban county in North Carolina that forms part of the greater Charlotte metropolitan area.
-
C.
Union County
Union County is a rural county in southwestern Iowa known for its agricultural landscape and small communities.
-
D.
Union County
Union County is a county in northern Georgia known for its mountainous terrain, outdoor recreation areas, and historic ties to the region’s gold-mining heritage.
-
E.
Union County
Union County is a small, rural county in northern Florida known for its agricultural landscape and correctional institutions.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Union County Target entity description: Union County is a county located in the southeastern corner of South Dakota, known for its agricultural landscape and proximity to the Missouri River and the Iowa and Nebraska borders.
-
A.
Union County
Union County is a rural county in southwestern Iowa known for its agricultural landscape and small communities.
-
B.
Union County
Union County is a small, rural county in northern Florida known for its agricultural landscape and correctional institutions.
-
C.
Union County
Union County is a rural county in northern South Carolina known for its historic textile mill heritage and small-town communities.
-
D.
Union County
Union County is a rural county in northeastern New Mexico known for its ranching economy, wide-open High Plains landscapes, and small communities such as its county seat, Clayton.
-
E.
Union County
Union County is a county in northern Georgia known for its mountainous terrain, outdoor recreation areas, and historic ties to the region’s gold-mining heritage.
- F. None of above. chosen
Statements (43)
| Predicate | Object |
|---|---|
| instanceOf |
county
ⓘ
county of South Dakota ⓘ |
| adjacentTo |
Clay County, South Dakota
NERFINISHED
ⓘ
Dakota County, Nebraska NERFINISHED ⓘ Dixon County, Nebraska NERFINISHED ⓘ Lincoln County, South Dakota NERFINISHED ⓘ Sioux County, Iowa NERFINISHED ⓘ Woodbury County, Iowa NERFINISHED ⓘ |
| areaLand | approximately 461 square miles ⓘ |
| areaTotal | approximately 467 square miles ⓘ |
| areaWater | approximately 6 square miles ⓘ |
| borderedBy |
Iowa
NERFINISHED
ⓘ
Missouri River NERFINISHED ⓘ Nebraska NERFINISHED ⓘ |
| bordersRiver | Missouri River NERFINISHED ⓘ |
| bordersState |
Iowa
NERFINISHED
ⓘ
Nebraska NERFINISHED ⓘ |
| country | United States of America ⓘ |
| economyBasedOn | agriculture ⓘ |
| FIPSCode | 46-127 ⓘ |
| GNISID | 1265900 ⓘ |
| governingBody | Union County Commission NERFINISHED ⓘ |
| hasBorderFeature | Missouri River valley NERFINISHED ⓘ |
| hasCommunity |
Alcester, South Dakota
NERFINISHED
ⓘ
Beresford, South Dakota NERFINISHED ⓘ Dakota Dunes, South Dakota NERFINISHED ⓘ Elk Point, South Dakota NERFINISHED ⓘ North Sioux City, South Dakota NERFINISHED ⓘ |
| hasCountySeat | Elk Point, South Dakota NERFINISHED ⓘ |
| hasFeature |
Missouri River floodplain
ⓘ
rolling prairie ⓘ |
| hasLandscape | agricultural landscape ⓘ |
| hasLargestCity | Dakota Dunes, South Dakota NERFINISHED ⓘ |
| locatedIn |
South Dakota
NERFINISHED
ⓘ
southeastern South Dakota ⓘ |
| locatedInFederalDistrict | South Dakota's at-large congressional district NERFINISHED ⓘ |
| locatedInRegion | Great Plains NERFINISHED ⓘ |
| locatedInTimeZone | Central Time Zone ⓘ |
| locatedInUSRegion | Midwest NERFINISHED ⓘ |
| namedAfter | Union ⓘ |
| partOf | Sioux City metropolitan area NERFINISHED ⓘ |
| postalAbbreviationState | SD ⓘ |
| state | South Dakota ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Union County Description of subject: Union County is a county located in the southeastern corner of South Dakota, known for its agricultural landscape and proximity to the Missouri River and the Iowa and Nebraska borders.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.