Petaluma River
E206739
The Petaluma River is a tidal river in Sonoma and Marin counties in Northern California that flows through the city of Petaluma before emptying into San Pablo Bay.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Petaluma River canonical | 4 |
| Petaluma River watershed | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T914847 — 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: Petaluma River Context triple: [San Pablo Bay, inflow, Petaluma River]
-
A.
Tuolumne River
The Tuolumne River is a major Sierra Nevada waterway in California known for its scenic alpine meadows, deep granite canyons, and popular whitewater rafting and fishing opportunities.
-
B.
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.
-
C.
Napa River
The Napa River is a major waterway in Northern California that flows through Napa Valley, supporting its renowned wine-growing region and local ecosystems before emptying into San Pablo Bay.
-
D.
Feather River
The Feather River is a major tributary of the Sacramento River in Northern California, known for its extensive role in the state’s water supply, hydroelectric power generation, and flood control.
-
E.
Yaquina River
The Yaquina River is a coastal river in western Oregon that flows through forested valleys before emptying into the Pacific Ocean at Yaquina Bay near Newport.
- 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: Petaluma River Target entity description: The Petaluma River is a tidal river in Sonoma and Marin counties in Northern California that flows through the city of Petaluma before emptying into San Pablo Bay.
-
A.
Tuolumne River
The Tuolumne River is a major Sierra Nevada waterway in California known for its scenic alpine meadows, deep granite canyons, and popular whitewater rafting and fishing opportunities.
-
B.
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.
-
C.
Napa River
The Napa River is a major waterway in Northern California that flows through Napa Valley, supporting its renowned wine-growing region and local ecosystems before emptying into San Pablo Bay.
-
D.
Feather River
The Feather River is a major tributary of the Sacramento River in Northern California, known for its extensive role in the state’s water supply, hydroelectric power generation, and flood control.
-
E.
Yaquina River
The Yaquina River is a coastal river in western Oregon that flows through forested valleys before emptying into the Pacific Ocean at Yaquina Bay near Newport.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
river
ⓘ
tidal river ⓘ |
| basinCountry |
United States of America
ⓘ
surface form:
United States
|
| conservationIssue |
water quality management
ⓘ
wetland restoration ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| crosses |
State Route 37
NERFINISHED
ⓘ
U.S. Route 101 ⓘ |
| drainageBasin |
Marin County
ⓘ
surface form:
Marin County, California
Sonoma County, California ⓘ |
| ecoregion | California coastal wetlands ⓘ |
| flowsDirection | generally southward ⓘ |
| flowsInto | San Pablo Bay ⓘ |
| flowsThrough | Petaluma, California ⓘ |
| hasBridge |
Petaluma River Bridge (railroad)
ⓘ
surface form:
Petaluma River Bridge (State Route 37)
Petaluma River Bridge (railroad) ⓘ |
| hasEstuary | tidal marshes ⓘ |
| hasPort | Petaluma Marina ⓘ |
| hasRecreation |
birdwatching
ⓘ
fishing ⓘ kayaking ⓘ |
| hasTributary |
Adobe Creek (Sonoma County)
ⓘ
Lichau Creek NERFINISHED ⓘ Lynch Creek NERFINISHED ⓘ Washington Creek ⓘ Willow Brook ⓘ |
| hasWetland |
Petaluma River Marsh Wildlife Area
ⓘ
surface form:
Petaluma Marsh
|
| historicalUse |
shipping of agricultural products
ⓘ
transport of poultry and eggs ⓘ |
| influencedBy | Pacific Ocean tides ⓘ |
| locatedIn |
Marin County
ⓘ
surface form:
Marin County, California
Northern California ⓘ Sonoma County, California ⓘ |
| mouth | San Pablo Bay ⓘ |
| mouthElevation | 0 m ⓘ |
| mouthLocation | near Lakeville, California ⓘ |
| nearbyCity |
Novato, California, United States
ⓘ
surface form:
Novato, California
Petaluma, California ⓘ |
| partOf |
Petaluma River
self-linksurface differs
ⓘ
surface form:
Petaluma River watershed
San Francisco Estuary ⓘ
surface form:
San Francisco Bay watershed
|
| region | North Bay (San Francisco Bay Area) ⓘ |
| state |
California, United States
ⓘ
surface form:
California
|
| subjectOf | Petaluma River Marsh Wildlife Area ⓘ |
| usedFor |
boating
ⓘ
recreation ⓘ wildlife habitat ⓘ |
| watercourseType | navigable waterway ⓘ |
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: Petaluma River Description of subject: The Petaluma River is a tidal river in Sonoma and Marin counties in Northern California that flows through the city of Petaluma before emptying into San Pablo Bay.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Petaluma River watershed
this entity surface form:
Petaluma River watershed