Alhambra Creek
E465184
Alhambra Creek is a small urban waterway running through Martinez in Contra Costa County, California, known for its role in local flood control and habitat restoration efforts.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Alhambra Creek canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4401068 — 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: Alhambra Creek Context triple: [Martinez, California, hasWaterBody, Alhambra Creek]
-
A.
San Luis Creek
San Luis Creek is a stream in central California that serves as a primary tributary feeding the San Luis Reservoir in Merced County.
-
B.
Econfina Creek
Econfina Creek is a spring-fed waterway in the Florida Panhandle known for its clear waters, karst features, and role in supplying freshwater to the surrounding region.
-
C.
San Timoteo Creek
San Timoteo Creek is a stream in Southern California that flows through the San Bernardino Valley, contributing to the region’s drainage and riparian habitat.
-
D.
Kayaderosseras Creek
Kayaderosseras Creek is a stream in eastern New York State that flows through Saratoga County and joins the Mohawk River, contributing to the Hudson River watershed.
-
E.
White Rock Creek
White Rock Creek is a stream in Dallas, Texas, that serves as the primary tributary feeding White Rock Lake and flows through parks and greenbelt areas popular for recreation.
- 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: Alhambra Creek Target entity description: Alhambra Creek is a small urban waterway running through Martinez in Contra Costa County, California, known for its role in local flood control and habitat restoration efforts.
-
A.
San Luis Creek
San Luis Creek is a stream in central California that serves as a primary tributary feeding the San Luis Reservoir in Merced County.
-
B.
Econfina Creek
Econfina Creek is a spring-fed waterway in the Florida Panhandle known for its clear waters, karst features, and role in supplying freshwater to the surrounding region.
-
C.
San Timoteo Creek
San Timoteo Creek is a stream in Southern California that flows through the San Bernardino Valley, contributing to the region’s drainage and riparian habitat.
-
D.
Kayaderosseras Creek
Kayaderosseras Creek is a stream in eastern New York State that flows through Saratoga County and joins the Mohawk River, contributing to the Hudson River watershed.
-
E.
White Rock Creek
White Rock Creek is a stream in Dallas, Texas, that serves as the primary tributary feeding White Rock Lake and flows through parks and greenbelt areas popular for recreation.
- F. None of above. chosen
Statements (35)
| Predicate | Object |
|---|---|
| instanceOf |
creek
ⓘ
urban waterway ⓘ |
| basinCountry |
United States of America
ⓘ
surface form:
United States
|
| conservationActivity |
bank stabilization
ⓘ
fish passage improvement ⓘ native vegetation planting ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| environmentalIssue |
flooding risk
ⓘ
urban runoff pollution ⓘ |
| flowsInto | Carquinez Strait NERFINISHED ⓘ |
| hasEcosystem | riparian habitat ⓘ |
| hasFeature |
concrete-lined channel segments
ⓘ
naturalized channel segments ⓘ |
| hasWildlife |
beaver
ⓘ
riparian birds ⓘ salmon ⓘ steelhead trout ⓘ |
| locatedIn |
California, United States
ⓘ
surface form:
California
Contra Costa County, California NERFINISHED ⓘ Martinez, California NERFINISHED ⓘ San Francisco Bay Area ⓘ |
| managedBy |
City of Martinez
NERFINISHED
ⓘ
Contra Costa County agencies ⓘ |
| mouthLocation | Martinez, California NERFINISHED ⓘ |
| notableFor |
local flood control role
ⓘ
urban habitat restoration ⓘ |
| partOf | Alhambra Creek watershed NERFINISHED ⓘ |
| passesThrough | downtown Martinez ⓘ |
| region | Northern California ⓘ |
| subjectOf |
flood mitigation projects
ⓘ
habitat restoration projects ⓘ |
| usedFor |
flood control
ⓘ
habitat restoration ⓘ urban drainage ⓘ |
| 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: Alhambra Creek Description of subject: Alhambra Creek is a small urban waterway running through Martinez in Contra Costa County, California, known for its role in local flood control and habitat restoration efforts.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.