southeastern South Dakota
E95645
Southeastern South Dakota is a region of the state that includes communities such as those in Union County and lies along the Missouri River near the borders with Iowa and Nebraska.
All labels observed (2)
| Label | Occurrences |
|---|---|
| East River region of South Dakota | 2 |
| southeastern South Dakota canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T789764 — 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: southeastern South Dakota Context triple: [Union County, South Dakota, partOf, southeastern South Dakota]
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A.
Siouxland region
The Siouxland region is a tri-state area in the upper Midwest of the United States, centered around Sioux City and encompassing parts of Iowa, Nebraska, and South Dakota.
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B.
eastern Nebraska
Eastern Nebraska is a region of the U.S. state of Nebraska centered around the Omaha–Lincoln corridor, known for its relatively dense population, diversified economy, and role as the state’s primary commercial and cultural center.
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C.
Faith, South Dakota
Faith, South Dakota is a small town in Meade County best known as the nearby discovery site of the famous Tyrannosaurus rex fossil "Sue."
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D.
southeastern Colorado
Southeastern Colorado is a largely rural region of Colorado known for its high plains landscapes, agricultural economy, and historic frontier and railroad heritage.
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E.
Elk Point, South Dakota
Elk Point, South Dakota is a small city in southeastern South Dakota known as one of the state’s oldest settlements and a local hub for the surrounding agricultural region.
- 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: southeastern South Dakota Target entity description: Southeastern South Dakota is a region of the state that includes communities such as those in Union County and lies along the Missouri River near the borders with Iowa and Nebraska.
-
A.
Siouxland region
The Siouxland region is a tri-state area in the upper Midwest of the United States, centered around Sioux City and encompassing parts of Iowa, Nebraska, and South Dakota.
-
B.
eastern Nebraska
Eastern Nebraska is a region of the U.S. state of Nebraska centered around the Omaha–Lincoln corridor, known for its relatively dense population, diversified economy, and role as the state’s primary commercial and cultural center.
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C.
Faith, South Dakota
Faith, South Dakota is a small town in Meade County best known as the nearby discovery site of the famous Tyrannosaurus rex fossil "Sue."
-
D.
southeastern Colorado
Southeastern Colorado is a largely rural region of Colorado known for its high plains landscapes, agricultural economy, and historic frontier and railroad heritage.
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E.
Elk Point, South Dakota
Elk Point, South Dakota is a small city in southeastern South Dakota known as one of the state’s oldest settlements and a local hub for the surrounding agricultural region.
- F. None of above. chosen
Statements (51)
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: southeastern South Dakota Description of subject: Southeastern South Dakota is a region of the state that includes communities such as those in Union County and lies along the Missouri River near the borders with Iowa and Nebraska.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
East River region of South Dakota
this entity surface form:
East River region of South Dakota