Keystone Dam
E252244
Keystone Dam is a major flood-control and hydroelectric dam in northeastern Oklahoma that forms Keystone Lake on the Arkansas River.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Keystone Dam canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T2265549 — 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 Dam Context triple: [Arkansas River, hasDam, Keystone Dam]
-
A.
O'Shaughnessy Dam
O'Shaughnessy Dam is a concrete arch-gravity dam in Yosemite National Park that creates the Hetch Hetchy Reservoir, supplying water and hydroelectric power to the San Francisco Bay Area.
-
B.
Conklingville Dam
Conklingville Dam is a concrete gravity dam in New York that created the Great Sacandaga Lake reservoir for flood control and hydroelectric power generation.
-
C.
Denison Dam
Denison Dam is a large earthen dam on the Red River between Texas and Oklahoma, built for flood control, hydroelectric power generation, and water supply.
-
D.
Red Rock Dam
Red Rock Dam is a large flood-control and hydroelectric dam on the Des Moines River in central Iowa, forming Lake Red Rock as the state’s largest reservoir.
-
E.
Trinity Dam
Trinity Dam is a major earthfill dam on the Trinity River in Northern California, forming Trinity Lake and providing water storage, hydroelectric power, and flood control as part of the state’s large federal water management system.
- 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 Dam Target entity description: Keystone Dam is a major flood-control and hydroelectric dam in northeastern Oklahoma that forms Keystone Lake on the Arkansas River.
-
A.
O'Shaughnessy Dam
O'Shaughnessy Dam is a concrete arch-gravity dam in Yosemite National Park that creates the Hetch Hetchy Reservoir, supplying water and hydroelectric power to the San Francisco Bay Area.
-
B.
Conklingville Dam
Conklingville Dam is a concrete gravity dam in New York that created the Great Sacandaga Lake reservoir for flood control and hydroelectric power generation.
-
C.
Denison Dam
Denison Dam is a large earthen dam on the Red River between Texas and Oklahoma, built for flood control, hydroelectric power generation, and water supply.
-
D.
Red Rock Dam
Red Rock Dam is a large flood-control and hydroelectric dam on the Des Moines River in central Iowa, forming Lake Red Rock as the state’s largest reservoir.
-
E.
Trinity Dam
Trinity Dam is a major earthfill dam on the Trinity River in Northern California, forming Trinity Lake and providing water storage, hydroelectric power, and flood control as part of the state’s large federal water management system.
- F. None of above. chosen
Statements (33)
| Predicate | Object |
|---|---|
| instanceOf |
dam
ⓘ
flood control structure ⓘ hydroelectric dam ⓘ |
| country | United States of America ⓘ |
| formsReservoir | Keystone Lake ⓘ |
| hasNameOrigin | Keystone Lake ⓘ |
| hasReservoir | Keystone Lake ⓘ |
| impounds | Arkansas River ⓘ |
| locatedIn |
Oklahoma
ⓘ
northeastern Oklahoma ⓘ |
| locatedNear |
Sand Springs, Oklahoma
ⓘ
linked to:
Sand Springs
Tulsa, Oklahoma ⓘ
linked to:
Tulsa, Oklahoma, United States
|
| locatedOnRiver | Arkansas River ⓘ |
| nearCity |
Sand Springs
ⓘ
Tulsa ⓘ |
| operator | U.S. Army Corps of Engineers ⓘ |
| ownedBy | United States government ⓘ |
| partOf | Arkansas River water resource projects ⓘ |
| purpose |
flood control
ⓘ
hydroelectric power generation ⓘ navigation support ⓘ recreation ⓘ water supply ⓘ |
| region |
Creek County, Oklahoma
ⓘ
Osage County, Oklahoma ⓘ Tulsa County, Oklahoma ⓘ
linked to:
Tulsa County
|
| riverBasin |
Arkansas River Basin
ⓘ
linked to:
Arkansas River region
|
| usedFor |
boating
ⓘ
fishing ⓘ flood mitigation ⓘ hydroelectricity ⓘ outdoor recreation ⓘ |
| watercourse | Arkansas River ⓘ |
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 Dam Description of subject: Keystone Dam is a major flood-control and hydroelectric dam in northeastern Oklahoma that forms Keystone Lake on the Arkansas River.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.