South Fork American River
E111313
The South Fork American River is a major tributary of California’s American River in the Sierra Nevada foothills, renowned for its historical role in the Gold Rush and its popular whitewater rafting runs.
All labels observed (2)
| Label | Occurrences |
|---|---|
| South Fork American River canonical | 15 |
| American River (South Fork segment) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T343333 — 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: South Fork American River Context triple: [Sutter's Mill, near, South Fork American 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.
Sacramento River
The Sacramento River is the longest river entirely within California, flowing through the northern part of the state and serving as a major source of water, transportation, and ecological habitat.
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C.
Kings River
Kings River is a major river in California’s Sierra Nevada that carves the deep gorge of Kings Canyon and gives its name to Kings Canyon National Park.
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D.
San Joaquin River
The San Joaquin River is a major river in central California that flows through the San Joaquin Valley and supports extensive agricultural, ecological, and water supply systems before joining the Sacramento–San Joaquin Delta.
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E.
Humboldt River
The Humboldt River is a major river in northern Nevada that flows westward across the Great Basin, serving as an important historical route and water source in an otherwise arid 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: South Fork American River Target entity description: The South Fork American River is a major tributary of California’s American River in the Sierra Nevada foothills, renowned for its historical role in the Gold Rush and its popular whitewater rafting runs.
-
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.
Sacramento River
The Sacramento River is the longest river entirely within California, flowing through the northern part of the state and serving as a major source of water, transportation, and ecological habitat.
-
C.
Kings River
Kings River is a major river in California’s Sierra Nevada that carves the deep gorge of Kings Canyon and gives its name to Kings Canyon National Park.
-
D.
San Joaquin River
The San Joaquin River is a major river in central California that flows through the San Joaquin Valley and supports extensive agricultural, ecological, and water supply systems before joining the Sacramento–San Joaquin Delta.
-
E.
Humboldt River
The Humboldt River is a major river in northern Nevada that flows westward across the Great Basin, serving as an important historical route and water source in an otherwise arid region.
- F. None of above. chosen
Statements (46)
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: South Fork American River Description of subject: The South Fork American River is a major tributary of California’s American River in the Sierra Nevada foothills, renowned for its historical role in the Gold Rush and its popular whitewater rafting runs.
Referenced by (16)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
American River (South Fork segment)