Broad Street plant, Philadelphia
E493347
The Broad Street plant in Philadelphia was a principal manufacturing complex of the Baldwin Locomotive Works, once one of the world’s leading builders of steam locomotives.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Broad Street plant, Philadelphia canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5116907 — 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: Broad Street plant, Philadelphia Context triple: [Baldwin Locomotive Works, majorFacility, Broad Street plant, Philadelphia]
-
A.
Broad Street (Philadelphia)
Broad Street (Philadelphia) is a major north–south thoroughfare and one of the city’s primary streets, known for landmarks like City Hall and the Avenue of the Arts.
-
B.
Fourth Street, Philadelphia
Fourth Street in Philadelphia is a historic thoroughfare in the city's central area, known for its proximity to notable institutions and colonial-era sites.
-
C.
Broad Street
Broad Street is a historically significant thoroughfare in Selma, Alabama, known for its role in the civil rights movement and its collection of notable historic buildings.
-
D.
Broad Street
Broad Street is a former elevated terminal station in Lower Manhattan that once served as the southern terminus for New York City's BMT Nassau Street Line J train.
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E.
Old City, Philadelphia
Old City, Philadelphia is a historic neighborhood in Center City known as the birthplace of American independence, home to landmarks like Independence Hall and the Liberty Bell.
- 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: Broad Street plant, Philadelphia Target entity description: The Broad Street plant in Philadelphia was a principal manufacturing complex of the Baldwin Locomotive Works, once one of the world’s leading builders of steam locomotives.
-
A.
Broad Street (Philadelphia)
Broad Street (Philadelphia) is a major north–south thoroughfare and one of the city’s primary streets, known for landmarks like City Hall and the Avenue of the Arts.
-
B.
Fourth Street, Philadelphia
Fourth Street in Philadelphia is a historic thoroughfare in the city's central area, known for its proximity to notable institutions and colonial-era sites.
-
C.
Broad Street
Broad Street is a historically significant thoroughfare in Selma, Alabama, known for its role in the civil rights movement and its collection of notable historic buildings.
-
D.
Broad Street
Broad Street is a former elevated terminal station in Lower Manhattan that once served as the southern terminus for New York City's BMT Nassau Street Line J train.
-
E.
Old City, Philadelphia
Old City, Philadelphia is a historic neighborhood in Center City known as the birthplace of American independence, home to landmarks like Independence Hall and the Liberty Bell.
- F. None of above. chosen
Statements (25)
| Predicate | Object |
|---|---|
| instanceOf |
industrial facility
ⓘ
locomotive factory ⓘ manufacturing complex ⓘ |
| associatedCompany | Baldwin Locomotive Works NERFINISHED ⓘ |
| associatedWith |
American railroad industry
ⓘ
steam locomotive era ⓘ |
| category |
Industrial buildings and structures in Philadelphia
ⓘ
Rail transport manufacturing facilities in the United States ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| describedAs | principal manufacturing complex of the Baldwin Locomotive Works ⓘ |
| function | manufacturing of locomotives and related components ⓘ |
| historicalRole | major center of steam locomotive production ⓘ |
| industry |
locomotive manufacturing
ⓘ
railway equipment manufacturing ⓘ |
| locatedIn |
Pennsylvania
ⓘ
Philadelphia ⓘ United States of America ⓘ
surface form:
United States
|
| namedAfter | Broad Street NERFINISHED ⓘ |
| notableFor | production of steam locomotives ⓘ |
| operatedBy | Baldwin Locomotive Works NERFINISHED ⓘ |
| ownedBy | Baldwin Locomotive Works NERFINISHED ⓘ |
| partOf | Baldwin Locomotive Works manufacturing system ⓘ |
| primaryProduct | steam locomotives ⓘ |
| significance | one of the principal locomotive manufacturing sites in the world during the steam era ⓘ |
| state | Pennsylvania ⓘ |
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: Broad Street plant, Philadelphia Description of subject: The Broad Street plant in Philadelphia was a principal manufacturing complex of the Baldwin Locomotive Works, once one of the world’s leading builders of steam locomotives.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.