Upper Truckee River
E26227
The Upper Truckee River is a major Sierra Nevada waterway that serves as the largest tributary feeding California–Nevada’s alpine Lake Tahoe.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Upper Truckee River canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T12332 — 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: Upper Truckee River Context triple: [Lake Tahoe, inflow, Upper Truckee River]
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A.
Truckee River
The Truckee River is a prominent river in the western United States that flows from Lake Tahoe in the Sierra Nevada through Nevada to Pyramid Lake, providing vital water resources and recreational opportunities to the region.
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B.
Carson River
The Carson River is a significant river in the western United States that flows through eastern California and western Nevada, playing a key role in the region’s ecology, agriculture, and water supply.
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C.
Merced River
The Merced River is a major Sierra Nevada waterway in California renowned for carving Yosemite Valley and providing iconic scenic, recreational, and ecological value within and beyond Yosemite National Park.
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D.
Tuolumne River
The Tuolumne River is a major Sierra Nevada waterway in California known for its scenic alpine meadows, deep granite canyons, and popular whitewater rafting and fishing opportunities.
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E.
Walker River
Walker River is a river in eastern California and western Nevada that flows from the Sierra Nevada through arid valleys into Walker Lake, providing vital water for ecosystems and agriculture in the region.
- 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: Upper Truckee River Target entity description: The Upper Truckee River is a major Sierra Nevada waterway that serves as the largest tributary feeding California–Nevada’s alpine Lake Tahoe.
-
A.
Truckee River
The Truckee River is a prominent river in the western United States that flows from Lake Tahoe in the Sierra Nevada through Nevada to Pyramid Lake, providing vital water resources and recreational opportunities to the region.
-
B.
Carson River
The Carson River is a significant river in the western United States that flows through eastern California and western Nevada, playing a key role in the region’s ecology, agriculture, and water supply.
-
C.
Merced River
The Merced River is a major Sierra Nevada waterway in California renowned for carving Yosemite Valley and providing iconic scenic, recreational, and ecological value within and beyond Yosemite National Park.
-
D.
Tuolumne River
The Tuolumne River is a major Sierra Nevada waterway in California known for its scenic alpine meadows, deep granite canyons, and popular whitewater rafting and fishing opportunities.
-
E.
Walker River
Walker River is a river in eastern California and western Nevada that flows from the Sierra Nevada through arid valleys into Walker Lake, providing vital water for ecosystems and agriculture in the region.
- F. None of above. chosen
Statements (35)
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: Upper Truckee River Description of subject: The Upper Truckee River is a major Sierra Nevada waterway that serves as the largest tributary feeding California–Nevada’s alpine Lake Tahoe.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.