Columbia River hydropower system
E78455
The Columbia River hydropower system is an extensive network of dams and generating facilities that provides a major share of the Pacific Northwest’s electricity while also supporting irrigation, navigation, and flood control.
All labels observed (10)
How this entity was disambiguated
This entity first appeared as the object of triple T609997 — 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: Columbia River hydropower system Context triple: [Columbia River, hydroelectricSystem, Columbia River hydropower system]
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A.
Columbia Basin Project
The Columbia Basin Project is a large-scale irrigation and hydroelectric development in central Washington State that distributes water and power from the Grand Coulee Dam to support agriculture, industry, and communities across the region.
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B.
Grand Coulee Dam
Grand Coulee Dam is a massive concrete gravity dam on the Columbia River in Washington State, renowned as one of the largest power-producing facilities in the United States and a landmark of New Deal–era infrastructure.
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C.
The Dalles Dam
The Dalles Dam is a large hydroelectric dam and navigation facility on the Columbia River in the Pacific Northwest, known for its significant power generation and impact on regional river ecosystems and communities.
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D.
Grand Coulee, Washington
Grand Coulee, Washington is a small city in north-central Washington state best known as the community adjacent to and serving the massive Grand Coulee Dam on the Columbia River.
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E.
Bonneville Dam
Bonneville Dam is a major hydroelectric and navigation dam on the Columbia River in the Pacific Northwest, known for power generation, fish ladders, and its role in regional river management.
- 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: Columbia River hydropower system Target entity description: The Columbia River hydropower system is an extensive network of dams and generating facilities that provides a major share of the Pacific Northwest’s electricity while also supporting irrigation, navigation, and flood control.
-
A.
Columbia Basin Project
The Columbia Basin Project is a large-scale irrigation and hydroelectric development in central Washington State that distributes water and power from the Grand Coulee Dam to support agriculture, industry, and communities across the region.
-
B.
Grand Coulee Dam
Grand Coulee Dam is a massive concrete gravity dam on the Columbia River in Washington State, renowned as one of the largest power-producing facilities in the United States and a landmark of New Deal–era infrastructure.
-
C.
The Dalles Dam
The Dalles Dam is a large hydroelectric dam and navigation facility on the Columbia River in the Pacific Northwest, known for its significant power generation and impact on regional river ecosystems and communities.
-
D.
Grand Coulee, Washington
Grand Coulee, Washington is a small city in north-central Washington state best known as the community adjacent to and serving the massive Grand Coulee Dam on the Columbia River.
-
E.
Bonneville Dam
Bonneville Dam is a major hydroelectric and navigation dam on the Columbia River in the Pacific Northwest, known for power generation, fish ladders, and its role in regional river management.
- F. None of above. chosen
Statements (60)
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: Columbia River hydropower system Description of subject: The Columbia River hydropower system is an extensive network of dams and generating facilities that provides a major share of the Pacific Northwest’s electricity while also supporting irrigation, navigation, and flood control.
Referenced by (23)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Columbia River hydroelectric system
this entity surface form:
Federal Columbia River Power System
this entity surface form:
Federal Columbia River Power System
this entity surface form:
Federal Columbia River Power System
this entity surface form:
Columbia River Basin water management system
this entity surface form:
Columbia River Basin hydropower system
this entity surface form:
Federal Columbia River Power System
this entity surface form:
Federal Columbia River Power System
this entity surface form:
Federal Columbia River Power System
this entity surface form:
Columbia River hydroelectric dams
subject surface form:
Douglas County, Washington
this entity surface form:
Columbia River reservoirs
this entity surface form:
Columbia River Treaty hydroelectric system
this entity surface form:
Columbia River hydropower network
this entity surface form:
Columbia River hydroelectric system
this entity surface form:
Columbia River reservoir system
this entity surface form:
Columbia River reservoir system