SEPTA
E59500
SEPTA is the regional public transportation authority serving Philadelphia and its surrounding counties, operating buses, subways, trolleys, and commuter rail services.
All labels observed (12)
| Label | Occurrences |
|---|---|
| SEPTA canonical | 273 |
| SEPTA fare system | 2 |
| SEPTA transit network | 2 |
| SEPTA transit system | 2 |
| SEPTA (most intermediate stations) | 1 |
| SEPTA (some segments) | 1 |
| SEPTA Transit (bus, subway, trolley) | 1 |
| SEPTA Transit Network | 1 |
| SEPTA bus | 1 |
| SEPTA headquarters in Philadelphia | 1 |
| SEPTA services | 1 |
| SEPTA timetables | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T472007 — 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: SEPTA Context triple: [SEPTA Broad Street Line, operator, SEPTA]
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A.
SEPTA City Transit Division
The SEPTA City Transit Division is the branch of Philadelphia’s regional transit authority that operates the city’s buses, trolleys, and subway–elevated lines.
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B.
SEPTA Suburban Transit Division
The SEPTA Suburban Transit Division is the part of Philadelphia’s regional transit system that operates bus, trolley, and other public transportation services in the suburban areas surrounding the city.
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C.
SEPTA Regional Rail
SEPTA Regional Rail is a commuter rail network serving the Philadelphia metropolitan area, connecting the city with its suburbs and neighboring regions.
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D.
SEPTA Board
The SEPTA Board is the policy-making and oversight body that directs and supervises the operations, budget, and strategic decisions of the Southeastern Pennsylvania Transportation Authority.
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E.
SEPTA rapid transit network
The SEPTA rapid transit network is the system of high-capacity urban rail lines serving Philadelphia and some surrounding suburbs, operated by the Southeastern Pennsylvania Transportation Authority.
- 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: SEPTA Target entity description: SEPTA is the regional public transportation authority serving Philadelphia and its surrounding counties, operating buses, subways, trolleys, and commuter rail services.
-
A.
SEPTA City Transit Division
The SEPTA City Transit Division is the branch of Philadelphia’s regional transit authority that operates the city’s buses, trolleys, and subway–elevated lines.
-
B.
SEPTA Suburban Transit Division
The SEPTA Suburban Transit Division is the part of Philadelphia’s regional transit system that operates bus, trolley, and other public transportation services in the suburban areas surrounding the city.
-
C.
SEPTA Regional Rail
SEPTA Regional Rail is a commuter rail network serving the Philadelphia metropolitan area, connecting the city with its suburbs and neighboring regions.
-
D.
SEPTA Board
The SEPTA Board is the policy-making and oversight body that directs and supervises the operations, budget, and strategic decisions of the Southeastern Pennsylvania Transportation Authority.
-
E.
SEPTA rapid transit network
The SEPTA rapid transit network is the system of high-capacity urban rail lines serving Philadelphia and some surrounding suburbs, operated by the Southeastern Pennsylvania Transportation Authority.
- F. None of above. chosen
Statements (48)
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: SEPTA Description of subject: SEPTA is the regional public transportation authority serving Philadelphia and its surrounding counties, operating buses, subways, trolleys, and commuter rail services.
Referenced by (287)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Ardmore, Pennsylvania
subject surface form:
Greater Philadelphia area
subject surface form:
Green Line (SEPTA)
this entity surface form:
SEPTA (some segments)
subject surface form:
SEPTA Route 15