Sacramento River and San Joaquin River
E238350
The Sacramento River and San Joaquin River are the two largest rivers in California’s Central Valley, whose combined waters drain much of the state’s interior before flowing into the San Francisco Bay.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Sacramento–San Joaquin River system | 3 |
| Sacramento River and San Joaquin River canonical | 1 |
| Sacramento–San Joaquin river system | 1 |
| Sacramento–San Joaquin watershed | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1036089 — 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: Sacramento River and San Joaquin River Context triple: [Suisun Bay, isConfluenceOf, Sacramento River and San Joaquin River]
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A.
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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B.
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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C.
Sacramento River Basin
The Sacramento River Basin is a major watershed in Northern California that drains the Sacramento River and its tributaries, supporting extensive agriculture, ecosystems, and water supply for the region.
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D.
Fresno River
The Fresno River is a waterway in central California that flows through the Sierra Nevada foothills and the San Joaquin Valley, contributing to the region’s agriculture and lending its name to Fresno County.
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E.
Napa River
The Napa River is a major waterway in Northern California that flows through Napa Valley, supporting its renowned wine-growing region and local ecosystems before emptying into San Pablo Bay.
- 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: Sacramento River and San Joaquin River Target entity description: The Sacramento River and San Joaquin River are the two largest rivers in California’s Central Valley, whose combined waters drain much of the state’s interior before flowing into the San Francisco Bay.
-
A.
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.
-
B.
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.
-
C.
Sacramento River Basin
The Sacramento River Basin is a major watershed in Northern California that drains the Sacramento River and its tributaries, supporting extensive agriculture, ecosystems, and water supply for the region.
-
D.
Fresno River
The Fresno River is a waterway in central California that flows through the Sierra Nevada foothills and the San Joaquin Valley, contributing to the region’s agriculture and lending its name to Fresno County.
-
E.
Napa River
The Napa River is a major waterway in Northern California that flows through Napa Valley, supporting its renowned wine-growing region and local ecosystems before emptying into San Pablo Bay.
- F. None of above. chosen
Statements (49)
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: Sacramento River and San Joaquin River Description of subject: The Sacramento River and San Joaquin River are the two largest rivers in California’s Central Valley, whose combined waters drain much of the state’s interior before flowing into the San Francisco Bay.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Sacramento–San Joaquin watershed
this entity surface form:
Sacramento–San Joaquin River system
this entity surface form:
Sacramento–San Joaquin river system
Sacramento River and San Joaquin River
→
partOf
→
Sacramento River and San Joaquin River
self-linksurface differs
ⓘ
subject surface form:
Sacramento River
this entity surface form:
Sacramento–San Joaquin River system
Sacramento River and San Joaquin River
→
partOf
→
Sacramento River and San Joaquin River
self-linksurface differs
ⓘ
subject surface form:
San Joaquin River
this entity surface form:
Sacramento–San Joaquin River system