Walnut Creek (San Gabriel River)
E929595
Walnut Creek (San Gabriel River) is a smaller stream in Los Angeles County, California, that feeds into the San Gabriel River as part of the region’s watershed system.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Walnut Creek (San Gabriel River) canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11460520 — 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: Walnut Creek (San Gabriel River) Context triple: [San Gabriel River, tributary, Walnut Creek (San Gabriel River)]
-
A.
Fish Creek (San Gabriel River)
Fish Creek is a smaller watercourse in Southern California that feeds into the San Gabriel River as one of its tributary streams.
-
B.
Lee Vining Creek
Lee Vining Creek is a Sierra Nevada stream in California that flows east into Mono Lake, providing a key source of freshwater to the Mono Basin ecosystem.
-
C.
San Andreas Creek
San Andreas Creek is a watercourse in San Mateo County, California, that drains the eastern slopes of the Santa Cruz Mountains into the San Andreas Reservoir.
-
D.
San Mateo Creek
San Mateo Creek is a waterway in San Mateo County, California, that drains the Crystal Springs Reservoir and flows toward San Francisco Bay.
-
E.
Alamitos Creek
Alamitos Creek is a stream in Santa Clara County, California, that flows through the Almaden Valley area and feeds into the Guadalupe River within the San Francisco Bay watershed.
- 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: Walnut Creek (San Gabriel River) Target entity description: Walnut Creek (San Gabriel River) is a smaller stream in Los Angeles County, California, that feeds into the San Gabriel River as part of the region’s watershed system.
-
A.
Fish Creek (San Gabriel River)
Fish Creek is a smaller watercourse in Southern California that feeds into the San Gabriel River as one of its tributary streams.
-
B.
Lee Vining Creek
Lee Vining Creek is a Sierra Nevada stream in California that flows east into Mono Lake, providing a key source of freshwater to the Mono Basin ecosystem.
-
C.
San Andreas Creek
San Andreas Creek is a watercourse in San Mateo County, California, that drains the eastern slopes of the Santa Cruz Mountains into the San Andreas Reservoir.
-
D.
San Mateo Creek
San Mateo Creek is a waterway in San Mateo County, California, that drains the Crystal Springs Reservoir and flows toward San Francisco Bay.
-
E.
Alamitos Creek
Alamitos Creek is a stream in Santa Clara County, California, that flows through the Almaden Valley area and feeds into the Guadalupe River within the San Francisco Bay watershed.
- F. None of above. chosen
Statements (25)
| Predicate | Object |
|---|---|
| instanceOf |
river in California
ⓘ
stream ⓘ tributary ⓘ |
| basinCountry |
United States of America
ⓘ
surface form:
United States
|
| country |
United States of America
ⓘ
surface form:
United States
|
| drainageBasin | Pacific Ocean basin NERFINISHED ⓘ |
| environmentalContext | urban watershed ⓘ |
| flowsThrough | Los Angeles County, California NERFINISHED ⓘ |
| geographicFeatureClass | stream ⓘ |
| hasLanguageOfLocalToponymy | English ⓘ |
| hasMouthIn | San Gabriel River NERFINISHED ⓘ |
| hasName | Walnut Creek NERFINISHED ⓘ |
| hydrologicalSystem | San Gabriel River system ⓘ |
| locatedIn |
California, United States
ⓘ
surface form:
California
Los Angeles County ⓘ
surface form:
Los Angeles County, California
Southern California ⓘ |
| locatedInTimeZone | Pacific Time Zone ⓘ |
| locatedOnContinent | North America ⓘ |
| naturalFeatureOf | Los Angeles County, California NERFINISHED ⓘ |
| partOf |
Los Angeles County watershed system
NERFINISHED
ⓘ
San Gabriel River watershed NERFINISHED ⓘ |
| region | Greater Los Angeles area NERFINISHED ⓘ |
| riverSystem | San Gabriel River NERFINISHED ⓘ |
| tributaryOf | San Gabriel River NERFINISHED ⓘ |
| watercourseType | smaller 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: Walnut Creek (San Gabriel River) Description of subject: Walnut Creek (San Gabriel River) is a smaller stream in Los Angeles County, California, that feeds into the San Gabriel River as part of the region’s watershed system.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.