Youghiogheny Dam
E553636
Youghiogheny Dam is a concrete gravity dam in southwestern Pennsylvania that creates Youghiogheny River Lake, providing flood control, recreation, and hydroelectric power for the region.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Youghiogheny Dam canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5750213 — 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: Youghiogheny Dam Context triple: [Youghiogheny River, hasDam, Youghiogheny Dam]
-
A.
Nolin River Dam
Nolin River Dam is a flood-control and recreation dam located on the Nolin River in central Kentucky, forming Nolin River Lake.
-
B.
Summersville Dam
Summersville Dam is a large rock-fill dam on the Gauley River in West Virginia, known for creating Summersville Lake and supporting popular whitewater recreation downstream.
-
C.
Delaware Dam
Delaware Dam is a flood-control and water-management structure located on the Olentangy River in central Ohio.
-
D.
West Point Dam
West Point Dam is a large U.S. Army Corps of Engineers hydroelectric and flood-control dam on the Chattahoochee River, forming West Point Lake on the Alabama–Georgia border.
-
E.
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.
- 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: Youghiogheny Dam Target entity description: Youghiogheny Dam is a concrete gravity dam in southwestern Pennsylvania that creates Youghiogheny River Lake, providing flood control, recreation, and hydroelectric power for the region.
-
A.
Nolin River Dam
Nolin River Dam is a flood-control and recreation dam located on the Nolin River in central Kentucky, forming Nolin River Lake.
-
B.
Summersville Dam
Summersville Dam is a large rock-fill dam on the Gauley River in West Virginia, known for creating Summersville Lake and supporting popular whitewater recreation downstream.
-
C.
Delaware Dam
Delaware Dam is a flood-control and water-management structure located on the Olentangy River in central Ohio.
-
D.
West Point Dam
West Point Dam is a large U.S. Army Corps of Engineers hydroelectric and flood-control dam on the Chattahoochee River, forming West Point Lake on the Alabama–Georgia border.
-
E.
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.
- F. None of above. chosen
Statements (27)
| Predicate | Object |
|---|---|
| instanceOf |
concrete gravity dam
ⓘ
dam ⓘ |
| basinCountry |
United States of America
ⓘ
surface form:
United States
|
| category |
Dams in Pennsylvania
ⓘ
Gravity dams in the United States ⓘ Hydroelectric dams in Pennsylvania ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| createsReservoir | Youghiogheny River Lake NERFINISHED ⓘ |
| formsLake | Youghiogheny River Lake NERFINISHED ⓘ |
| hasFunction |
electricity production
ⓘ
flood mitigation ⓘ water-based recreation support ⓘ |
| impounds | Youghiogheny River NERFINISHED ⓘ |
| locatedIn |
Pennsylvania
ⓘ
United States of America ⓘ
surface form:
United States
|
| locatedInRegion | Appalachian region NERFINISHED ⓘ |
| locatedInWatershed | Youghiogheny River watershed NERFINISHED ⓘ |
| locatedOnRiver | Youghiogheny River NERFINISHED ⓘ |
| material | concrete ⓘ |
| providesServiceTo | surrounding region of southwestern Pennsylvania ⓘ |
| purpose |
flood control
ⓘ
hydroelectric power generation ⓘ recreation ⓘ |
| region | southwestern Pennsylvania NERFINISHED ⓘ |
| reservoirName | Youghiogheny River Lake NERFINISHED ⓘ |
| state | Pennsylvania ⓘ |
| structureType | gravity dam ⓘ |
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: Youghiogheny Dam Description of subject: Youghiogheny Dam is a concrete gravity dam in southwestern Pennsylvania that creates Youghiogheny River Lake, providing flood control, recreation, and hydroelectric power for the region.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.