Dominguez Watershed
E918600
The Dominguez Watershed is a drainage basin in southern Los Angeles County that collects urban runoff and stormwater from surrounding communities and channels it to the Pacific Ocean.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Dominguez Channel Watershed | 1 |
| Dominguez Watershed canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11263557 — 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: Dominguez Watershed Context triple: [Dominguez Channel, partOf, Dominguez Watershed]
-
A.
Sespe Creek
Sespe Creek is a major free-flowing stream in Southern California known for its scenic canyon, wildlife habitat, and role as a key tributary of the Santa Clara River.
-
B.
Ventura River watershed
The Ventura River watershed is a river basin in Ventura County, California, that collects runoff from surrounding mountain ranges and drains it through the Ventura River to the Pacific Ocean.
-
C.
Tecate Creek
Tecate Creek is a small stream in the U.S.–Mexico border region that flows through Tecate, California, and into Baja California, Mexico.
-
D.
Calero Creek
Calero Creek is a stream in Santa Clara County, California, that drains the foothills near Calero Reservoir and flows northward through San Jose before joining the Guadalupe River.
-
E.
Los Gatos Creek
Los Gatos Creek is a stream in Santa Clara County, California, that flows through the town of Los Gatos and parts of the South Bay before joining the Guadalupe River.
- 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: Dominguez Watershed Target entity description: The Dominguez Watershed is a drainage basin in southern Los Angeles County that collects urban runoff and stormwater from surrounding communities and channels it to the Pacific Ocean.
-
A.
Sespe Creek
Sespe Creek is a major free-flowing stream in Southern California known for its scenic canyon, wildlife habitat, and role as a key tributary of the Santa Clara River.
-
B.
Ventura River watershed
The Ventura River watershed is a river basin in Ventura County, California, that collects runoff from surrounding mountain ranges and drains it through the Ventura River to the Pacific Ocean.
-
C.
Tecate Creek
Tecate Creek is a small stream in the U.S.–Mexico border region that flows through Tecate, California, and into Baja California, Mexico.
-
D.
Calero Creek
Calero Creek is a stream in Santa Clara County, California, that drains the foothills near Calero Reservoir and flows northward through San Jose before joining the Guadalupe River.
-
E.
Los Gatos Creek
Los Gatos Creek is a stream in Santa Clara County, California, that flows through the town of Los Gatos and parts of the South Bay before joining the Guadalupe River.
- F. None of above. chosen
Statements (27)
| Predicate | Object |
|---|---|
| instanceOf |
drainage basin
ⓘ
watershed ⓘ |
| collects |
stormwater
ⓘ
urban runoff ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| drainsInto | Pacific Ocean NERFINISHED ⓘ |
| environmentalIssue |
urban pollution in runoff
ⓘ
water quality impairment ⓘ |
| flowsThrough | urbanized areas ⓘ |
| hasClimate | Mediterranean climate region ⓘ |
| hasEcosystemType | highly modified urban ecosystem ⓘ |
| hasHydrologicFunction | channels surface water to the ocean ⓘ |
| hasManagementConcern |
control of pollutants in stormwater
ⓘ
protection of coastal water quality ⓘ |
| hasProcess |
collection of rainfall runoff
ⓘ
conveyance of storm flows ⓘ |
| hasRisk | flooding during heavy storms ⓘ |
| hasUse |
stormwater management
ⓘ
urban runoff conveyance ⓘ |
| isSubjectOf |
local stormwater management programs
ⓘ
water quality monitoring efforts ⓘ |
| locatedIn |
Los Angeles County
NERFINISHED
ⓘ
Southern California ⓘ southern Los Angeles County ⓘ |
| partOf | Los Angeles County watersheds ⓘ |
| receivesRunoffFrom | surrounding communities in southern Los Angeles County ⓘ |
| regionType | urban watershed ⓘ |
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: Dominguez Watershed Description of subject: The Dominguez Watershed is a drainage basin in southern Los Angeles County that collects urban runoff and stormwater from surrounding communities and channels it to the Pacific Ocean.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Dominguez Channel Watershed