San Gabriel River
E239869
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.
All labels observed (3)
| Label | Occurrences |
|---|---|
| San Gabriel River canonical | 3 |
| San Gabriel River (nearby) | 1 |
| South Fork San Gabriel River | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1850601 — 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: [Central Texas, hasRiver, San Gabriel River]
-
A.
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.
-
B.
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.
-
C.
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.
-
D.
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.
-
E.
Santa Cruz River
The Santa Cruz River is a significant river in southern Argentina that flows eastward from the Andes through the Patagonian steppe to the Atlantic Ocean.
- 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 tributary of the Brazos River in central Texas, known for its scenic limestone banks, recreational opportunities, and role in regional water supply and ecosystems.
-
A.
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.
-
B.
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.
-
C.
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.
-
D.
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.
-
E.
Santa Cruz River
The Santa Cruz River is a significant river in southern Argentina that flows eastward from the Andes through the Patagonian steppe to the Atlantic Ocean.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf | river ⓘ |
| associatedWith |
Georgetown Lake
NERFINISHED
ⓘ
Granger Lake NERFINISHED ⓘ |
| basinLandUse |
agriculture
ⓘ
rangeland ⓘ urban development ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| drainageBasin | part of Brazos River drainage basin ⓘ |
| flowsThrough |
Bell County, Texas
ⓘ
Milam County, Texas ⓘ Williamson County ⓘ
surface form:
Williamson County, Texas
|
| hasBankType | limestone banks ⓘ |
| hasFeature |
gravel bars
ⓘ
limestone bluffs ⓘ shallow riffles ⓘ |
| hasGeology | Cretaceous limestone formations ⓘ |
| hasLeftTributary |
San Gabriel River
ⓘ
surface form:
North Fork San Gabriel River
|
| hasMouth | Brazos River ⓘ |
| hasRecreationArea |
San Gabriel River Trail (Georgetown)
ⓘ
parks along the river in Georgetown ⓘ |
| hasRightTributary |
San Gabriel River
self-linksurface differs
ⓘ
surface form:
South Fork San Gabriel River
|
| hasSourceRegion |
Hill Country of Texas
ⓘ
surface form:
Texas Hill Country
|
| impoundedBy |
Granger Dam
ⓘ
North Fork Dam ⓘ |
| knownFor |
ecological importance
ⓘ
recreational opportunities ⓘ role in regional water supply ⓘ scenic limestone banks ⓘ |
| locatedIn |
Texas
ⓘ
central Texas ⓘ |
| mouthLocation | near Bryan, Texas ⓘ |
| partOf | regional ecosystems of central Texas ⓘ |
| passesThrough | Georgetown, Texas ⓘ |
| region | Central Texas Plains ecoregion ⓘ |
| riverSystem |
Brazos River
ⓘ
surface form:
Brazos River basin
|
| supports |
aquatic ecosystems
ⓘ
riparian habitats ⓘ wildlife habitat ⓘ |
| tributaryOf | Brazos River ⓘ |
| usedFor |
boating
ⓘ
fishing ⓘ recreation ⓘ regional water supply ⓘ swimming ⓘ |
| waterManagementRole |
flood control via reservoirs
ⓘ
irrigation supply ⓘ municipal water supply ⓘ |
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 tributary of the Brazos River in central Texas, known for its scenic limestone banks, recreational opportunities, and role in regional water supply and ecosystems.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Central Texas
subject surface form:
Taylor, Texas
this entity surface form:
San Gabriel River (nearby)
subject surface form:
Williamson County, Texas
this entity surface form:
South Fork San Gabriel River
subject surface form:
Georgetown, Texas