Oakland Estuary
E376769
The Oakland Estuary is a tidal channel separating Oakland and Alameda, California, serving as a key maritime waterway and harbor area in the San Francisco Bay.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Oakland Estuary canonical | 7 |
| Oakland harbor system | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3669144 — 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: Oakland Estuary Context triple: [Jack London Square, locatedOnWaterbody, Oakland Estuary]
-
A.
Suisun Bay
Suisun Bay is a shallow tidal estuary in Northern California that forms part of the greater San Francisco Bay system and serves as a key confluence for the Sacramento and San Joaquin rivers.
-
B.
Siletz Bay estuary
Siletz Bay estuary is a coastal estuarine ecosystem on the central Oregon coast where the Siletz River meets the Pacific Ocean, known for its tidal wetlands, wildlife habitat, and recreational opportunities.
-
C.
Nehalem Bay estuary
Nehalem Bay estuary is a coastal estuarine system on the northern Oregon coast where the Nehalem River meets the Pacific Ocean, supporting rich tidal wetlands and diverse marine and bird life.
-
D.
Humboldt Bay
Humboldt Bay is a large natural harbor and coastal lagoon on the Northern California coast, known for its rich marine ecosystems, commercial port, and surrounding wetlands.
-
E.
Elkhorn Slough
Elkhorn Slough is a major tidal wetland and estuarine reserve on California’s central coast, renowned for its rich biodiversity and critical habitat for migratory birds and marine life.
- 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: Oakland Estuary Target entity description: The Oakland Estuary is a tidal channel separating Oakland and Alameda, California, serving as a key maritime waterway and harbor area in the San Francisco Bay.
-
A.
Suisun Bay
Suisun Bay is a shallow tidal estuary in Northern California that forms part of the greater San Francisco Bay system and serves as a key confluence for the Sacramento and San Joaquin rivers.
-
B.
Siletz Bay estuary
Siletz Bay estuary is a coastal estuarine ecosystem on the central Oregon coast where the Siletz River meets the Pacific Ocean, known for its tidal wetlands, wildlife habitat, and recreational opportunities.
-
C.
Nehalem Bay estuary
Nehalem Bay estuary is a coastal estuarine system on the northern Oregon coast where the Nehalem River meets the Pacific Ocean, supporting rich tidal wetlands and diverse marine and bird life.
-
D.
Humboldt Bay
Humboldt Bay is a large natural harbor and coastal lagoon on the Northern California coast, known for its rich marine ecosystems, commercial port, and surrounding wetlands.
-
E.
Elkhorn Slough
Elkhorn Slough is a major tidal wetland and estuarine reserve on California’s central coast, renowned for its rich biodiversity and critical habitat for migratory birds and marine life.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
harbor
ⓘ
tidal channel ⓘ waterway ⓘ |
| adjacentToNeighborhood |
Alameda waterfront
ⓘ
Brooklyn Basin area ⓘ Jack London District ⓘ |
| connectedTo |
Inner Harbor of Oakland
ⓘ
linked to:
Oakland Inner Harbor
Outer Harbor of Oakland ⓘ
linked to:
Oakland Inner Harbor
|
| country |
United States
ⓘ
linked to:
United States of America
|
| crossedBy |
Fruitvale Bridge
ⓘ
High Street Bridge NERFINISHED ⓘ Miller–Sweeney Bridge NERFINISHED ⓘ Oakland–Alameda County Coliseum area bridges (general) ⓘ Park Street Bridge NERFINISHED ⓘ |
| flowsInto | San Francisco Bay ⓘ |
| hasEnvironmentalConcern |
habitat restoration
ⓘ
sediment contamination ⓘ water pollution ⓘ |
| hasNavigationInfrastructure |
marinas
ⓘ
piers ⓘ shipping berths ⓘ |
| hasNearbyFacility |
Alameda Marina
ⓘ
Alameda Naval Air Station (former) ⓘ Coast Guard Island NERFINISHED ⓘ Jack London Square ⓘ Oakland Marina ⓘ |
| hasPortFacility | Port of Oakland ⓘ |
| hasUse |
commercial harbor
ⓘ
maritime shipping ⓘ recreational boating ⓘ |
| isTidal | true ⓘ |
| locatedIn |
California
ⓘ
linked to:
California, United States
San Francisco Bay Area ⓘ |
| locatedNextTo |
Alameda
ⓘ
linked to:
Alameda, California
Oakland ⓘ |
| partOf | San Francisco Bay ⓘ |
| region | East Bay ⓘ |
| separates |
City of Alameda
ⓘ
City of Oakland ⓘ
linked to:
Oakland
|
| usedFor |
fishing
ⓘ
kayaking ⓘ sailing ⓘ |
| waterBodyType | tidal estuary ⓘ |
| waterwayFunction |
harbor access route
ⓘ
shipping channel ⓘ |
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: Oakland Estuary Description of subject: The Oakland Estuary is a tidal channel separating Oakland and Alameda, California, serving as a key maritime waterway and harbor area in the San Francisco Bay.
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Oakland Estuary