San Gabriel River
E271645
The San Gabriel River is a major waterway in Southern California that flows from the San Gabriel Mountains through the Los Angeles Basin to the Pacific Ocean, historically supporting Indigenous communities and regional development.
All labels observed (4)
| Label | Occurrences |
|---|---|
| San Gabriel River canonical | 24 |
| San Gabriel River watershed | 4 |
| North Fork San Gabriel River | 1 |
| Rio San Gabriel | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2356658 — 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: San Gabriel River Context triple: [Tongva people, traditionalTerritoryIncludes, San Gabriel River]
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A.
San Gabriel River
The San Gabriel River is a tributary of the Brazos River in central Texas, known for its scenic limestone banks, recreational opportunities, and role in regional water supply and ecosystems.
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B.
Santa Ana River
The Santa Ana River is a major waterway in Southern California that flows from the San Bernardino Mountains through inland valleys to the Pacific Ocean, shaping the region’s geography and development.
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C.
Otay River
The Otay River is a small river in southern San Diego County, California, that drains the Otay watershed and ultimately empties into San Diego Bay.
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D.
San Diego River
The San Diego River is a major waterway in Southern California that flows from the Cuyamaca Mountains through Mission Valley to the Pacific Ocean, playing a key role in the region’s history and ecology.
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E.
Salinas River
The Salinas River is a major river in central California that flows northwest through the Salinas Valley to Monterey Bay, supporting extensive agriculture along its course.
- 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: San Gabriel River Target entity description: The San Gabriel River is a major waterway in Southern California that flows from the San Gabriel Mountains through the Los Angeles Basin to the Pacific Ocean, historically supporting Indigenous communities and regional development.
-
A.
San Gabriel River
The San Gabriel River is a tributary of the Brazos River in central Texas, known for its scenic limestone banks, recreational opportunities, and role in regional water supply and ecosystems.
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B.
Santa Ana River
The Santa Ana River is a major waterway in Southern California that flows from the San Bernardino Mountains through inland valleys to the Pacific Ocean, shaping the region’s geography and development.
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C.
Otay River
The Otay River is a small river in southern San Diego County, California, that drains the Otay watershed and ultimately empties into San Diego Bay.
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D.
San Diego River
The San Diego River is a major waterway in Southern California that flows from the Cuyamaca Mountains through Mission Valley to the Pacific Ocean, playing a key role in the region’s history and ecology.
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E.
Salinas River
The Salinas River is a major river in central California that flows northwest through the Salinas Valley to Monterey Bay, supporting extensive agriculture along its course.
- F. None of above. chosen
Statements (48)
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: San Gabriel River Description of subject: The San Gabriel River is a major waterway in Southern California that flows from the San Gabriel Mountains through the Los Angeles Basin to the Pacific Ocean, historically supporting Indigenous communities and regional development.
Referenced by (30)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
San Gabriel River watershed
this entity surface form:
North Fork San Gabriel River
subject surface form:
Duarte, California
this entity surface form:
Rio San Gabriel
subject surface form:
Iron Mountain (San Gabriel Mountains)
this entity surface form:
San Gabriel River watershed
this entity surface form:
San Gabriel River watershed
this entity surface form:
San Gabriel River watershed