Possum Kingdom Dam
E511061
Possum Kingdom Dam is a large hydroelectric and flood-control dam in Palo Pinto County, Texas, that creates Possum Kingdom Lake on the Brazos River.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Possum Kingdom Dam canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5315858 — 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: Possum Kingdom Dam Context triple: [Brazos River, hasDam, Possum Kingdom Dam]
-
A.
Eufaula Dam
Eufaula Dam is a major flood-control and hydroelectric dam on the Arkansas River in Oklahoma that forms Lake Eufaula, one of the largest reservoirs in the United States.
-
B.
Parker Dam
Parker Dam is a concrete arch-gravity dam on the Colorado River best known for creating Lake Havasu and supplying water and hydroelectric power to parts of California and Arizona.
-
C.
Oxbow Dam
Oxbow Dam is a hydroelectric dam on the Snake River in eastern Oregon, forming Oxbow Reservoir as part of the Hells Canyon Complex.
-
D.
Buford Dam
Buford Dam is a large hydroelectric and flood-control dam in Georgia that creates Lake Lanier and helps regulate water flow and supply for the Atlanta metropolitan area.
-
E.
Crystal Springs Dam
Crystal Springs Dam is a historic concrete gravity dam in San Mateo County, California, that impounds water to create the Crystal Springs Reservoir as part of the San Francisco Peninsula’s water supply 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: Possum Kingdom Dam Target entity description: Possum Kingdom Dam is a large hydroelectric and flood-control dam in Palo Pinto County, Texas, that creates Possum Kingdom Lake on the Brazos River.
-
A.
Eufaula Dam
Eufaula Dam is a major flood-control and hydroelectric dam on the Arkansas River in Oklahoma that forms Lake Eufaula, one of the largest reservoirs in the United States.
-
B.
Parker Dam
Parker Dam is a concrete arch-gravity dam on the Colorado River best known for creating Lake Havasu and supplying water and hydroelectric power to parts of California and Arizona.
-
C.
Oxbow Dam
Oxbow Dam is a hydroelectric dam on the Snake River in eastern Oregon, forming Oxbow Reservoir as part of the Hells Canyon Complex.
-
D.
Buford Dam
Buford Dam is a large hydroelectric and flood-control dam in Georgia that creates Lake Lanier and helps regulate water flow and supply for the Atlanta metropolitan area.
-
E.
Crystal Springs Dam
Crystal Springs Dam is a historic concrete gravity dam in San Mateo County, California, that impounds water to create the Crystal Springs Reservoir as part of the San Francisco Peninsula’s water supply system.
- F. None of above. chosen
Statements (37)
| Predicate | Object |
|---|---|
| instanceOf |
dam
ⓘ
flood control dam ⓘ hydroelectric dam ⓘ |
| basinCountry |
United States of America
ⓘ
surface form:
United States
|
| constructionBegan | 1938 ⓘ |
| constructionMaterial | concrete ⓘ |
| continent | North America ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| county | Palo Pinto County NERFINISHED ⓘ |
| createsReservoir | Possum Kingdom Lake NERFINISHED ⓘ |
| hasFunction |
generation of hydroelectric energy
ⓘ
reduction of downstream flooding ⓘ regulation of Brazos River flow ⓘ |
| hasHydroelectricPlant | yes ⓘ |
| hasSpillway | yes ⓘ |
| height | about 190 feet ⓘ |
| inception | 1941 ⓘ |
| length | about 2,700 feet ⓘ |
| locatedIn |
Palo Pinto County, Texas
NERFINISHED
ⓘ
Texas ⓘ United States of America ⓘ
surface form:
United States
|
| locatedNear | Possum Kingdom State Park NERFINISHED ⓘ |
| locatedOnWaterbody | Possum Kingdom Lake NERFINISHED ⓘ |
| namedAfter | Possum Kingdom Lake NERFINISHED ⓘ |
| nearestCity | Graford, Texas NERFINISHED ⓘ |
| opened | 1941 ⓘ |
| operator | Brazos River Authority NERFINISHED ⓘ |
| ownedBy | Brazos River Authority NERFINISHED ⓘ |
| partOf | Brazos River basin NERFINISHED ⓘ |
| purpose |
flood control
ⓘ
hydroelectric power generation ⓘ recreation ⓘ water supply ⓘ |
| regionServed | North Central Texas NERFINISHED ⓘ |
| river | Brazos River NERFINISHED ⓘ |
| state | Texas ⓘ |
| watercourseDammed | Brazos River NERFINISHED ⓘ |
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: Possum Kingdom Dam Description of subject: Possum Kingdom Dam is a large hydroelectric and flood-control dam in Palo Pinto County, Texas, that creates Possum Kingdom Lake on the Brazos River.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.