Pittsburg Marina
E611094
Pittsburg Marina is a public waterfront harbor and recreational boating facility located on the Sacramento–San Joaquin River Delta in Pittsburg, California.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Pittsburg Marina canonical | 1 |
| Pittsburg Marina Waterfront | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6676263 — 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: Pittsburg Marina Context triple: [Pittsburg, California, hasFacility, Pittsburg Marina]
-
A.
Erie Basin Marina
Erie Basin Marina is a popular waterfront recreational area and marina in Buffalo, New York, known for its boat docks, scenic lake views, and public park space along Lake Erie.
-
B.
Saul Junction Marina
Saul Junction Marina is a popular inland marina in Gloucestershire, England, serving boaters and leisure users on the historic Gloucester and Sharpness Canal.
-
C.
Seeadler Harbor
Seeadler Harbor is a large natural harbor in the Admiralty Islands that served as a major Allied naval base and logistics hub in the Pacific during World War II.
-
D.
Columbia Point Marina Park
Columbia Point Marina Park is a waterfront recreational area and boat marina located along the Columbia River in Richland, Washington.
-
E.
Wasauksing Marina
Wasauksing Marina is a waterfront facility serving the Wasauksing First Nation community, providing docking and related services on the shores of Georgian Bay in Ontario, Canada.
- 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: Pittsburg Marina Target entity description: Pittsburg Marina is a public waterfront harbor and recreational boating facility located on the Sacramento–San Joaquin River Delta in Pittsburg, California.
-
A.
Erie Basin Marina
Erie Basin Marina is a popular waterfront recreational area and marina in Buffalo, New York, known for its boat docks, scenic lake views, and public park space along Lake Erie.
-
B.
Saul Junction Marina
Saul Junction Marina is a popular inland marina in Gloucestershire, England, serving boaters and leisure users on the historic Gloucester and Sharpness Canal.
-
C.
Seeadler Harbor
Seeadler Harbor is a large natural harbor in the Admiralty Islands that served as a major Allied naval base and logistics hub in the Pacific during World War II.
-
D.
Columbia Point Marina Park
Columbia Point Marina Park is a waterfront recreational area and boat marina located along the Columbia River in Richland, Washington.
-
E.
Wasauksing Marina
Wasauksing Marina is a waterfront facility serving the Wasauksing First Nation community, providing docking and related services on the shores of Georgian Bay in Ontario, Canada.
- F. None of above. chosen
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
harbor
ⓘ
marina ⓘ recreational boating facility ⓘ |
| climate | Mediterranean climate ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| hasActivity |
boating
ⓘ
fishing ⓘ picnicking ⓘ sightseeing ⓘ walking ⓘ |
| hasFacility |
boat launch ramp
ⓘ
boat slips ⓘ fishing areas ⓘ fuel dock ⓘ guest docks ⓘ harbormaster office ⓘ parking lot ⓘ picnic areas ⓘ restrooms ⓘ waterfront promenade ⓘ |
| hasFeature |
berthing for recreational vessels
ⓘ
public waterfront access ⓘ views of the Sacramento–San Joaquin River Delta ⓘ |
| hasNavigationType | inland delta waterways ⓘ |
| hasNearby |
parks
ⓘ
restaurants ⓘ trails ⓘ |
| hasRegulation | local marina rules and ordinances ⓘ |
| locatedIn |
California, United States
ⓘ
surface form:
California
Contra Costa County, California NERFINISHED ⓘ Pittsburg, California NERFINISHED ⓘ |
| locatedOn | Sacramento–San Joaquin River Delta NERFINISHED ⓘ |
| near | downtown Pittsburg, California NERFINISHED ⓘ |
| operator | City of Pittsburg NERFINISHED ⓘ |
| ownedBy | City of Pittsburg NERFINISHED ⓘ |
| partOf | Sacramento–San Joaquin River Delta recreation area NERFINISHED ⓘ |
| primaryUse | recreational boating ⓘ |
| publicAccess | yes ⓘ |
| region | San Francisco Bay Area ⓘ |
| serves |
local residents
ⓘ
recreational boaters ⓘ tourists ⓘ |
| subjectTo | tidal influence ⓘ |
| waterbody | Sacramento–San Joaquin River Delta NERFINISHED ⓘ |
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: Pittsburg Marina Description of subject: Pittsburg Marina is a public waterfront harbor and recreational boating facility located on the Sacramento–San Joaquin River Delta in Pittsburg, California.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Pittsburg Marina Waterfront