South Fork Cosumnes River
E754175
The South Fork Cosumnes River is a tributary stream in Northern California that drains part of the Sierra Nevada foothills before joining the main Cosumnes River.
All labels observed (1)
| Label | Occurrences |
|---|---|
| South Fork Cosumnes River canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T7797708 — 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 Cosumnes River Context triple: [Cosumnes River, hasTributary, South Fork Cosumnes River]
-
A.
Middle Fork Cosumnes River
The Middle Fork Cosumnes River is a major tributary stream in the Sierra Nevada of California, contributing to the flow and watershed of the Cosumnes River system.
-
B.
North Fork Cosumnes River
The North Fork Cosumnes River is a major tributary stream in Northern California that drains the western slopes of the Sierra Nevada before joining the main Cosumnes River.
-
C.
North Fork American River
The North Fork American River is a major tributary of California’s American River, known for its rugged canyon scenery, whitewater recreation, and relatively undisturbed natural habitat in the Sierra Nevada foothills.
-
D.
South Fork American River
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.
-
E.
Middle Fork San Joaquin River
The Middle Fork San Joaquin River is a major Sierra Nevada waterway in California that flows through the Ansel Adams Wilderness and Devils Postpile National Monument, featuring notable cascades such as Rainbow Falls.
- 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 Cosumnes River Target entity description: The South Fork Cosumnes River is a tributary stream in Northern California that drains part of the Sierra Nevada foothills before joining the main Cosumnes River.
-
A.
Middle Fork Cosumnes River
The Middle Fork Cosumnes River is a major tributary stream in the Sierra Nevada of California, contributing to the flow and watershed of the Cosumnes River system.
-
B.
North Fork Cosumnes River
The North Fork Cosumnes River is a major tributary stream in Northern California that drains the western slopes of the Sierra Nevada before joining the main Cosumnes River.
-
C.
North Fork American River
The North Fork American River is a major tributary of California’s American River, known for its rugged canyon scenery, whitewater recreation, and relatively undisturbed natural habitat in the Sierra Nevada foothills.
-
D.
South Fork American River
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.
-
E.
Middle Fork San Joaquin River
The Middle Fork San Joaquin River is a major Sierra Nevada waterway in California that flows through the Ansel Adams Wilderness and Devils Postpile National Monument, featuring notable cascades such as Rainbow Falls.
- F. None of above. chosen
Statements (24)
| Predicate | Object |
|---|---|
| instanceOf | river ⓘ |
| basinCountry |
United States
ⓘ
linked to:
United States of America
|
| continent | North America ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| drains | Sierra Nevada foothills ⓘ |
| environment | Sierra Nevada foothill ecosystem ⓘ |
| flowsGenerallyTowards | west ⓘ |
| flowsThrough | Sierra Nevada foothills ⓘ |
| hasMouth | Cosumnes River ⓘ |
| hasName | South Fork Cosumnes River ⓘ |
| hasTributaryType | south fork ⓘ |
| hydrologicUnit |
Cosumnes River basin
ⓘ
linked to:
Cosumnes River watershed
|
| isForkOf | Cosumnes River ⓘ |
| locatedIn |
California
ⓘ
linked to:
California, United States
Northern California ⓘ Sierra Nevada foothills ⓘ |
| locatedInMountainRange | Sierra Nevada ⓘ |
| mouthLocatedIn |
California
ⓘ
linked to:
California, United States
|
| partOf | Cosumnes River watershed ⓘ |
| region | Northern California ⓘ |
| riverSystem | Cosumnes River ⓘ |
| state |
California
ⓘ
linked to:
California, United States
|
| tributaryOf | Cosumnes River ⓘ |
| watercourseType | perennial stream ⓘ |
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 Cosumnes River Description of subject: The South Fork Cosumnes River is a tributary stream in Northern California that drains part of the Sierra Nevada foothills before joining the main Cosumnes River.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.