Lake Koocanusa
E394918
Lake Koocanusa is a large cross-border reservoir on the Kootenay River, spanning southeastern British Columbia in Canada and northwestern Montana in the United States, popular for recreation and hydroelectric power generation.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Lake Koocanusa canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T3841860 — 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: Lake Koocanusa Context triple: [Kootenay River, hasReservoir, Lake Koocanusa]
-
A.
Lake Oahe
Lake Oahe is a large man-made reservoir on the Missouri River in the north-central United States, known for its extensive recreation opportunities and role in regional water storage and hydroelectric power.
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B.
Lake Cushman
Lake Cushman is a scenic reservoir on the north fork of the Skokomish River in Washington State, popular for boating, fishing, and hiking near Olympic National Park.
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C.
Lake Sakakawea
Lake Sakakawea is a large reservoir in North Dakota formed by the Garrison Dam on the Missouri River, known for its extensive shoreline and recreational opportunities.
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D.
Jackson Lake
Jackson Lake is a large glacial lake in northwestern Wyoming, renowned for its scenic setting beneath the Teton Range and its popularity for boating, fishing, and wildlife viewing.
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E.
Lake Roosevelt
Lake Roosevelt is a large reservoir on the Columbia River in Washington State, created by the Grand Coulee Dam and used for hydroelectric power, irrigation, recreation, and water storage.
- 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: Lake Koocanusa Target entity description: Lake Koocanusa is a large cross-border reservoir on the Kootenay River, spanning southeastern British Columbia in Canada and northwestern Montana in the United States, popular for recreation and hydroelectric power generation.
-
A.
Lake Oahe
Lake Oahe is a large man-made reservoir on the Missouri River in the north-central United States, known for its extensive recreation opportunities and role in regional water storage and hydroelectric power.
-
B.
Lake Cushman
Lake Cushman is a scenic reservoir on the north fork of the Skokomish River in Washington State, popular for boating, fishing, and hiking near Olympic National Park.
-
C.
Lake Sakakawea
Lake Sakakawea is a large reservoir in North Dakota formed by the Garrison Dam on the Missouri River, known for its extensive shoreline and recreational opportunities.
-
D.
Jackson Lake
Jackson Lake is a large glacial lake in northwestern Wyoming, renowned for its scenic setting beneath the Teton Range and its popularity for boating, fishing, and wildlife viewing.
-
E.
Lake Roosevelt
Lake Roosevelt is a large reservoir on the Columbia River in Washington State, created by the Grand Coulee Dam and used for hydroelectric power, irrigation, recreation, and water storage.
- F. None of above. chosen
Statements (47)
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: Lake Koocanusa Description of subject: Lake Koocanusa is a large cross-border reservoir on the Kootenay River, spanning southeastern British Columbia in Canada and northwestern Montana in the United States, popular for recreation and hydroelectric power generation.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Western Montana