Merced River
E25327
The Merced River is a major Sierra Nevada waterway in California renowned for carving Yosemite Valley and providing iconic scenic, recreational, and ecological value within and beyond Yosemite National Park.
All labels observed (15)
How this entity was disambiguated
This entity first appeared as the object of triple T12293 — 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: Merced River Context triple: [Yosemite National Park, river, Merced River]
-
A.
San Joaquin River
The San Joaquin River is a major river in central California that flows through the San Joaquin Valley and supports extensive agricultural, ecological, and water supply systems before joining the Sacramento–San Joaquin Delta.
-
B.
Truckee River
The Truckee River is a prominent river in the western United States that flows from Lake Tahoe in the Sierra Nevada through Nevada to Pyramid Lake, providing vital water resources and recreational opportunities to the region.
-
C.
Mojave River
The Mojave River is an intermittent river in the Mojave Desert of California that mostly flows underground and provides a crucial water source for the region’s arid ecosystems and communities.
-
D.
Carson River
The Carson River is a significant river in the western United States that flows through eastern California and western Nevada, playing a key role in the region’s ecology, agriculture, and water supply.
-
E.
Walker River
Walker River is a river in eastern California and western Nevada that flows from the Sierra Nevada through arid valleys into Walker Lake, providing vital water for ecosystems and agriculture in the region.
- 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: Merced River Target entity description: The Merced River is a major Sierra Nevada waterway in California renowned for carving Yosemite Valley and providing iconic scenic, recreational, and ecological value within and beyond Yosemite National Park.
-
A.
San Joaquin River
The San Joaquin River is a major river in central California that flows through the San Joaquin Valley and supports extensive agricultural, ecological, and water supply systems before joining the Sacramento–San Joaquin Delta.
-
B.
Truckee River
The Truckee River is a prominent river in the western United States that flows from Lake Tahoe in the Sierra Nevada through Nevada to Pyramid Lake, providing vital water resources and recreational opportunities to the region.
-
C.
Mojave River
The Mojave River is an intermittent river in the Mojave Desert of California that mostly flows underground and provides a crucial water source for the region’s arid ecosystems and communities.
-
D.
Carson River
The Carson River is a significant river in the western United States that flows through eastern California and western Nevada, playing a key role in the region’s ecology, agriculture, and water supply.
-
E.
Walker River
Walker River is a river in eastern California and western Nevada that flows from the Sierra Nevada through arid valleys into Walker Lake, providing vital water for ecosystems and agriculture in the region.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf | river ⓘ |
| basinCountry |
United States of America
ⓘ
surface form:
United States
|
| cityNamedAfter |
Merced
ⓘ
surface form:
Merced, California
|
| country |
United States of America
ⓘ
surface form:
United States
|
| drainageBasin | San Joaquin Valley ⓘ |
| ecosystemService |
riparian habitat
ⓘ
wildlife corridor ⓘ |
| flowsThrough |
Merced
ⓘ
surface form:
City of Merced, California
Mariposa County ⓘ
surface form:
Mariposa County, California
Merced County ⓘ
surface form:
Merced County, California
Sierra National Forest ⓘ Stanislaus National Forest ⓘ Yosemite Valley ⓘ |
| hasTributary |
Bridalveil Creek
ⓘ
Fresno River ⓘ Illilouette Creek ⓘ Merced River self-linksurface differs ⓘ
surface form:
North Fork Merced River
Merced River self-linksurface differs ⓘ
surface form:
South Fork Merced River
Tenaya Creek ⓘ |
| knownFor |
carving Yosemite Valley
ⓘ
ecological value ⓘ recreational value ⓘ scenic value ⓘ |
| locatedIn |
Sierra Nevada
ⓘ
Yosemite National Park ⓘ |
| mouth | San Joaquin River ⓘ |
| namedAfter | Nuestra Señora de la Merced ⓘ |
| partOf |
National Wild and Scenic Rivers System units
ⓘ
surface form:
National Wild and Scenic Rivers System
|
| passesFeature |
El Capitan
ⓘ
Half Dome ⓘ Little Yosemite Valley ⓘ Nevada Fall ⓘ Vernal Fall ⓘ |
| protectedStatus | National Wild and Scenic River ⓘ |
| recreationArea |
Merced River
self-linksurface differs
ⓘ
surface form:
Merced River Recreation Management Area
|
| region |
Central Valley
ⓘ
surface form:
Central Valley of California
|
| sourceLocation |
Sierra Nevada
ⓘ
surface form:
Sierra Nevada, California
|
| sourceRegion | Sierra Nevada ⓘ |
| state |
California, United States
ⓘ
surface form:
California
|
| supportsSpecies |
Sierra Nevada wildlife
ⓘ
brown trout ⓘ rainbow trout ⓘ |
| tributaryOf | San Joaquin River ⓘ |
| usedFor |
camping
ⓘ
fishing ⓘ kayaking ⓘ whitewater rafting ⓘ |
| USGSHydrologicUnit | San Joaquin River Basin ⓘ |
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: Merced River Description of subject: The Merced River is a major Sierra Nevada waterway in California renowned for carving Yosemite Valley and providing iconic scenic, recreational, and ecological value within and beyond Yosemite National Park.
Referenced by (96)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Merced River (in lower sections)
this entity surface form:
Merced River watershed
this entity surface form:
Merced River system
this entity surface form:
Merced River corridor
subject surface form:
San Joaquin River
this entity surface form:
Merced River corridor
this entity surface form:
Merced River basin
subject surface form:
Northside Drive (Yosemite Valley)
this entity surface form:
Merced River watershed
this entity surface form:
Merced River watershed
this entity surface form:
Merced River in Yosemite National Park
subject surface form:
Southside Drive
subject surface form:
Southside Drive
subject surface form:
Southside Drive