Pier 50
E418800
Pier 50 is one of the historic waterfront piers along San Francisco’s Embarcadero, used primarily for maritime and industrial purposes.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Pier 50 canonical | 1 |
| The Millwheel, San Francisco | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3930266 — 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: Pier 50 Context triple: [Piers 48–50, hasPart, Pier 50]
-
A.
Pier 57
Pier 57 is a historic waterfront pier and entertainment complex on Seattle’s Elliott Bay, featuring restaurants, shops, and attractions along the city’s central waterfront.
-
B.
Pier 48
Pier 48 is a historic waterfront pier in San Francisco’s Mission Bay area, known for its industrial maritime architecture and redevelopment plans as part of the city’s evolving shoreline.
-
C.
Pier 45
Pier 45 is a popular recreational pier in Manhattan’s Greenwich Village, known for its lawns, waterfront views, and role as a gathering spot along the Hudson River.
-
D.
Pier 51
Pier 51 is a recreational pier within Manhattan’s Hudson River Park, known for its playground, water features, and riverside views.
-
E.
Pier 5
Pier 5 is a recreational pier in Brooklyn Bridge Park known for its sports fields, waterfront views, and public gathering spaces along the Brooklyn waterfront.
- 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: Pier 50 Target entity description: Pier 50 is one of the historic waterfront piers along San Francisco’s Embarcadero, used primarily for maritime and industrial purposes.
-
A.
Pier 57
Pier 57 is a historic waterfront pier and entertainment complex on Seattle’s Elliott Bay, featuring restaurants, shops, and attractions along the city’s central waterfront.
-
B.
Pier 48
Pier 48 is a historic waterfront pier in San Francisco’s Mission Bay area, known for its industrial maritime architecture and redevelopment plans as part of the city’s evolving shoreline.
-
C.
Pier 45
Pier 45 is a popular recreational pier in Manhattan’s Greenwich Village, known for its lawns, waterfront views, and role as a gathering spot along the Hudson River.
-
D.
Pier 51
Pier 51 is a recreational pier within Manhattan’s Hudson River Park, known for its playground, water features, and riverside views.
-
E.
Pier 5
Pier 5 is a recreational pier in Brooklyn Bridge Park known for its sports fields, waterfront views, and public gathering spaces along the Brooklyn waterfront.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
industrial facility
ⓘ
maritime facility ⓘ waterfront pier ⓘ |
| adjacentTo | San Francisco Bay shoreline ⓘ |
| governedBy |
City and County of San Francisco
ⓘ
linked to:
San Francisco County
|
| hasAccess |
The Embarcadero roadway
ⓘ
linked to:
The Embarcadero
|
| hasAddressRegion |
South of Market, San Francisco
ⓘ
linked to:
South of Market (SoMa)
|
| hasCharacteristic | historic pier ⓘ |
| hasFunction |
berthing of vessels
ⓘ
cargo handling ⓘ support for maritime operations ⓘ |
| hasNearbyInfrastructure | Interstate 280 terminus area ⓘ |
| hasNearbyLandmark | Oracle Park ⓘ |
| hasOrientation | extends into San Francisco Bay ⓘ |
| hasUse |
industrial purposes
ⓘ
maritime purposes ⓘ |
| hasWaterfrontType | deep-water pier ⓘ |
| hasZoningType | waterfront industrial ⓘ |
| isNumberedPierOf | San Francisco pier system ⓘ |
| isPartOf | Port of San Francisco infrastructure ⓘ |
| locatedAlong | The Embarcadero ⓘ |
| locatedIn |
California
ⓘ
linked to:
California, United States
San Francisco ⓘ United States ⓘ
linked to:
United States of America
|
| locatedOn | San Francisco Bay ⓘ |
| ownedBy | Port of San Francisco ⓘ |
| partOf |
San Francisco waterfront
ⓘ
linked to:
San Francisco Embarcadero waterfront
|
| usedFor |
industrial storage
ⓘ
marine services ⓘ shipping-related activities ⓘ |
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: Pier 50 Description of subject: Pier 50 is one of the historic waterfront piers along San Francisco’s Embarcadero, used primarily for maritime and industrial purposes.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Pier 50