Broad Street Subway
E383604
The Broad Street Subway is a major rapid transit line in Philadelphia that runs primarily along Broad Street, serving as a key north–south backbone of the city’s public transportation system.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Broad Street Subway canonical | 6 |
| Broad Street Subway trunk line | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T3748974 — 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 Subway Context triple: [Hunting Park station, isPartOf, Broad Street Subway]
-
A.
Queens Quay streetcar line
The Queens Quay streetcar line is a Toronto streetcar route that runs along the city’s central waterfront, serving key destinations and attractions on Queens Quay.
-
B.
Spadina streetcar line
The Spadina streetcar line is a major Toronto Transit Commission route running along Spadina Avenue, connecting key downtown destinations including the University of Toronto’s St. George campus.
-
C.
Waterloo & City line
The Waterloo & City line is a short, deep-level London Underground railway line that provides a direct commuter link between Waterloo station and the City of London.
-
D.
Yonge Street subway corridor
The Yonge Street subway corridor is a major rapid transit route in Toronto that follows Yonge Street and forms the backbone of the city’s subway network.
-
E.
Sheppard subway
Sheppard subway is a Toronto Transit Commission rapid transit line in North York that runs east–west along Sheppard Avenue.
- 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 Subway Target entity description: The Broad Street Subway is a major rapid transit line in Philadelphia that runs primarily along Broad Street, serving as a key north–south backbone of the city’s public transportation system.
-
A.
Queens Quay streetcar line
The Queens Quay streetcar line is a Toronto streetcar route that runs along the city’s central waterfront, serving key destinations and attractions on Queens Quay.
-
B.
Spadina streetcar line
The Spadina streetcar line is a major Toronto Transit Commission route running along Spadina Avenue, connecting key downtown destinations including the University of Toronto’s St. George campus.
-
C.
Waterloo & City line
The Waterloo & City line is a short, deep-level London Underground railway line that provides a direct commuter link between Waterloo station and the City of London.
-
D.
Yonge Street subway corridor
The Yonge Street subway corridor is a major rapid transit route in Toronto that follows Yonge Street and forms the backbone of the city’s subway network.
-
E.
Sheppard subway
Sheppard subway is a Toronto Transit Commission rapid transit line in North York that runs east–west along Sheppard Avenue.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
public transport infrastructure
ⓘ
rapid transit line ⓘ subway line ⓘ |
| connectsTo |
Market–Frankford Line
ⓘ
linked to:
SEPTA Market–Frankford Line
PATCO Speedline ⓘ SEPTA Regional Rail ⓘ SEPTA Trolley lines ⓘ
linked to:
SEPTA Subway–Surface Trolley Lines
SEPTA bus network ⓘ
linked to:
SEPTA bus routes
|
| direction | north–south ⓘ |
| electrification | third rail ⓘ |
| fareSystem |
SEPTA Key
ⓘ
proof-of-payment within paid areas ⓘ |
| followsStreet | Broad Street ⓘ |
| hasBranch | Broad–Ridge Spur ⓘ |
| hasColor | orange ⓘ |
| hasServicePattern |
express service
ⓘ
local service ⓘ |
| hasStationType |
surface-level terminal
ⓘ
underground station ⓘ |
| hasTerminus |
Fern Rock Transportation Center
ⓘ
NRG Station ⓘ |
| locatedIn |
Pennsylvania
ⓘ
Philadelphia ⓘ United States ⓘ
linked to:
United States of America
|
| openedForService | 1928 ⓘ |
| operator |
SEPTA
ⓘ
Southeastern Pennsylvania Transportation Authority ⓘ |
| ownedBy |
City of Philadelphia
ⓘ
linked to:
Philadelphia
|
| partOf |
SEPTA subway–elevated system
ⓘ
linked to:
SEPTA rapid transit network
|
| primaryFunction |
commuter transport
ⓘ
urban mass transit ⓘ |
| safetySystem | automatic block signaling ⓘ |
| servesArea |
Center City Philadelphia
ⓘ
Fern Rock ⓘ North Philadelphia ⓘ South Philadelphia ⓘ |
| servesInstitution |
City Hall of Philadelphia
ⓘ
linked to:
Philadelphia City Hall
Temple University ⓘ |
| servesRole | north–south backbone of Philadelphia public transportation ⓘ |
| servesVenue |
Citizens Bank Park
ⓘ
Lincoln Financial Field ⓘ Sports Complex in South Philadelphia ⓘ Wells Fargo Center ⓘ |
| system |
SEPTA Rapid Transit
ⓘ
linked to:
SEPTA rapid transit network
|
| ticketing | faregates at major stations ⓘ |
| trackConfiguration |
four-track trunk in central section
ⓘ
two-track branches at ends ⓘ |
| usesRollingStockType | broad gauge subway cars ⓘ |
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 Subway Description of subject: The Broad Street Subway is a major rapid transit line in Philadelphia that runs primarily along Broad Street, serving as a key north–south backbone of the city’s public transportation system.
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Broad Street Subway
linked to: Broad Street Subway
subject linked to:
Broad Street Line Walnut–Locust station
subject linked to:
City Hall Station