Berkeley Marina
E120089
Berkeley Marina is a waterfront recreational area on the San Francisco Bay known for its marina facilities, parks, trails, and panoramic views.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Berkeley Marina canonical | 3 |
| Berkeley Marina small-boat harbor | 1 |
| Berkeley Yacht Harbor | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1034685 — 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: Berkeley Marina Context triple: [Berkeley, hasLandmark, Berkeley Marina]
-
A.
Port of Hayward
Port of Hayward is a small industrial and recreational harbor facility serving maritime activities in the city of Hayward, California, on the eastern shore of San Francisco Bay.
-
B.
Crissy Field
Crissy Field is a restored former airfield and popular waterfront park in San Francisco offering beaches, trails, and views of the Golden Gate Bridge.
-
C.
Zephyr Cove Marina
Zephyr Cove Marina is a popular Lake Tahoe waterfront facility offering boating, water sports, and lakeside recreation services.
-
D.
Port of San Francisco
The Port of San Francisco is a major maritime facility and waterfront district on the city’s eastern shoreline, serving as a hub for cargo, ferries, cruise ships, and commercial development.
-
E.
Cullen Bay Marina
Cullen Bay Marina is a popular waterfront precinct in Darwin, Australia, known for its residential marina, dining venues, and leisure boating facilities.
- 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: Berkeley Marina Target entity description: Berkeley Marina is a waterfront recreational area on the San Francisco Bay known for its marina facilities, parks, trails, and panoramic views.
-
A.
Port of Hayward
Port of Hayward is a small industrial and recreational harbor facility serving maritime activities in the city of Hayward, California, on the eastern shore of San Francisco Bay.
-
B.
Crissy Field
Crissy Field is a restored former airfield and popular waterfront park in San Francisco offering beaches, trails, and views of the Golden Gate Bridge.
-
C.
Zephyr Cove Marina
Zephyr Cove Marina is a popular Lake Tahoe waterfront facility offering boating, water sports, and lakeside recreation services.
-
D.
Port of San Francisco
The Port of San Francisco is a major maritime facility and waterfront district on the city’s eastern shoreline, serving as a hub for cargo, ferries, cruise ships, and commercial development.
-
E.
Cullen Bay Marina
Cullen Bay Marina is a popular waterfront precinct in Darwin, Australia, known for its residential marina, dining venues, and leisure boating facilities.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
marina
ⓘ
park complex ⓘ waterfront recreational area ⓘ |
| accessibleFrom | University Avenue ⓘ |
| adjacentTo |
César Chávez Park
ⓘ
Eastshore Freeway (Interstate 80) ⓘ |
| connectedTo | San Francisco Bay Trail ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| environmentType |
bayfront
ⓘ
urban waterfront ⓘ |
| hasActivity |
cycling
ⓘ
kite flying ⓘ running ⓘ windsurfing ⓘ |
| hasFeature |
bicycle paths
ⓘ
boat launch facilities ⓘ boat marina ⓘ fishing pier ⓘ off-leash dog areas ⓘ open grassy fields ⓘ panoramic bay views ⓘ parking areas ⓘ picnic areas ⓘ playgrounds ⓘ public parks ⓘ walking trails ⓘ |
| hasPart |
Adventure Playground
ⓘ
Berkeley Fishing Pier ⓘ Berkeley Marina small-boat harbor ⓘ
linked to:
Berkeley Marina
Berkeley Yacht Club ⓘ César Chávez Park ⓘ Shorebird Park ⓘ |
| locatedIn |
Alameda County, California
ⓘ
linked to:
Alameda County
Berkeley, California ⓘ
linked to:
Berkeley
San Francisco Bay Area ⓘ |
| locatedOn | San Francisco Bay ⓘ |
| operatedBy |
City of Berkeley
ⓘ
linked to:
Berkeley
|
| ownedBy |
City of Berkeley
ⓘ
linked to:
Berkeley
|
| primaryUse |
birdwatching
ⓘ
boating ⓘ fishing ⓘ picnicking ⓘ recreation ⓘ sailing ⓘ walking ⓘ |
| region | Northern California ⓘ |
| viewOf |
Bay Bridge
ⓘ
Golden Gate Bridge ⓘ Marin Headlands ⓘ San Francisco skyline ⓘ |
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: Berkeley Marina Description of subject: Berkeley Marina is a waterfront recreational area on the San Francisco Bay known for its marina facilities, parks, trails, and panoramic views.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Berkeley Marina
linked to: Berkeley Marina