Yale Dam
E517474
Yale Dam is a hydroelectric dam on Washington State’s Lewis River that forms Yale Lake and helps generate power and manage water resources in the region.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Yale Dam canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T5314903 — 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: Yale Dam Context triple: [Lewis River, hasDam, Yale Dam]
-
A.
Merwin Dam
Merwin Dam is a hydroelectric dam on Washington State’s Lewis River that forms Lake Merwin and generates power for the region.
-
B.
Watertown Dam
Watertown Dam is a historic low-head dam on the Charles River in Watertown, Massachusetts, that once powered local industry and now helps regulate river flow and fish passage.
-
C.
Wyman Dam
Wyman Dam is a hydroelectric dam in Maine that impounds the Kennebec River to form Wyman Lake and generate power.
-
D.
Wyman Dam
Wyman Dam is a hydroelectric dam located on the Androscoggin River in Maine, used for power generation and river flow regulation.
-
E.
North Fork Dam
North Fork Dam is a hydroelectric and water-supply dam located on the Clackamas River in northwestern Oregon.
- 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: Yale Dam Target entity description: Yale Dam is a hydroelectric dam on Washington State’s Lewis River that forms Yale Lake and helps generate power and manage water resources in the region.
-
A.
Merwin Dam
Merwin Dam is a hydroelectric dam on Washington State’s Lewis River that forms Lake Merwin and generates power for the region.
-
B.
Watertown Dam
Watertown Dam is a historic low-head dam on the Charles River in Watertown, Massachusetts, that once powered local industry and now helps regulate river flow and fish passage.
-
C.
Wyman Dam
Wyman Dam is a hydroelectric dam in Maine that impounds the Kennebec River to form Wyman Lake and generate power.
-
D.
Wyman Dam
Wyman Dam is a hydroelectric dam located on the Androscoggin River in Maine, used for power generation and river flow regulation.
-
E.
North Fork Dam
North Fork Dam is a hydroelectric and water-supply dam located on the Clackamas River in northwestern Oregon.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
gravity dam
ⓘ
hydroelectric dam ⓘ |
| affects | downstream Lewis River flows ⓘ |
| associatedWith | Yale Hydroelectric Project NERFINISHED ⓘ |
| basinCountry |
United States of America
ⓘ
surface form:
United States
|
| country |
United States of America
ⓘ
surface form:
United States
|
| forms | Yale Lake NERFINISHED ⓘ |
| hasFunction |
electricity generation
ⓘ
river flow regulation ⓘ |
| hasReservoir | Yale Lake NERFINISHED ⓘ |
| impounds | Yale Lake NERFINISHED ⓘ |
| isPartOf | Columbia River watershed NERFINISHED ⓘ |
| locatedIn |
Cowlitz County, Washington
NERFINISHED
ⓘ
Lewis River NERFINISHED ⓘ Southwest Washington NERFINISHED ⓘ United States of America ⓘ
surface form:
United States
Washington ⓘ
surface form:
Washington State
|
| near | Cougar, Washington NERFINISHED ⓘ |
| operator | PacifiCorp NERFINISHED ⓘ |
| owner | PacifiCorp NERFINISHED ⓘ |
| partOf | Lewis River hydroelectric project NERFINISHED ⓘ |
| purpose |
flood control
ⓘ
hydroelectric power generation ⓘ recreation support ⓘ water resource management ⓘ |
| region | Pacific Northwest ⓘ |
| riverCrossed | Lewis River NERFINISHED ⓘ |
| supports | regional power grid ⓘ |
| uses | concrete gravity design ⓘ |
| watercourse | Lewis 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: Yale Dam Description of subject: Yale Dam is a hydroelectric dam on Washington State’s Lewis River that forms Yale Lake and helps generate power and manage water resources in the region.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.