Keystone, South Dakota
E683299
Keystone, South Dakota is a small Black Hills town best known as the primary gateway community to Mount Rushmore National Memorial.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Keystone, South Dakota canonical | 4 |
| Keystone, South Dakota, United States | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7706989 — 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: Keystone, South Dakota Context triple: [Mount Rushmore National Memorial, nearestCity, Keystone, South Dakota]
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A.
Brookings, South Dakota
Brookings, South Dakota is a small city in eastern South Dakota known as the home of South Dakota State University and its associated cultural, educational, and athletic activities.
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B.
Columbia, South Dakota
Columbia, South Dakota is a small rural town located in northeastern South Dakota within Brown County.
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C.
Vermillion, South Dakota
Vermillion, South Dakota is a small city in southeastern South Dakota best known as the home of the University of South Dakota and its flagship campus.
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D.
St. Francis, South Dakota
St. Francis, South Dakota is a small town located within the Rosebud Indian Reservation and is closely associated with the Sicangu Lakota (Rosebud Sioux) community.
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E.
Ideal, South Dakota
Ideal, South Dakota is a small unincorporated community located within the Rosebud Indian Reservation in south-central South Dakota.
- 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: Keystone, South Dakota Target entity description: Keystone, South Dakota is a small Black Hills town best known as the primary gateway community to Mount Rushmore National Memorial.
-
A.
Brookings, South Dakota
Brookings, South Dakota is a small city in eastern South Dakota known as the home of South Dakota State University and its associated cultural, educational, and athletic activities.
-
B.
Columbia, South Dakota
Columbia, South Dakota is a small rural town located in northeastern South Dakota within Brown County.
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C.
Vermillion, South Dakota
Vermillion, South Dakota is a small city in southeastern South Dakota best known as the home of the University of South Dakota and its flagship campus.
-
D.
St. Francis, South Dakota
St. Francis, South Dakota is a small town located within the Rosebud Indian Reservation and is closely associated with the Sicangu Lakota (Rosebud Sioux) community.
-
E.
Ideal, South Dakota
Ideal, South Dakota is a small unincorporated community located within the Rosebud Indian Reservation in south-central South Dakota.
- F. None of above. chosen
Statements (41)
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: Keystone, South Dakota Description of subject: Keystone, South Dakota is a small Black Hills town best known as the primary gateway community to Mount Rushmore National Memorial.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.