15th Street station
E26317
15th Street station is a major underground transit hub in Center City Philadelphia that connects SEPTA’s subway–surface trolleys with the Market–Frankford Line and nearby regional rail services.
All labels observed (3)
| Label | Occurrences |
|---|---|
| 15th Street station canonical | 6 |
| 15th Street Station | 4 |
| 15th Street station (SEPTA Market–Frankford Line) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T92357 — 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: 15th Street station Context triple: [SEPTA Subway–Surface Trolley Lines, centralTunnelTerminus, 15th Street station]
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A.
13th Street station
13th Street station is a major underground transit stop in Center City Philadelphia serving SEPTA’s Subway–Surface Trolley Lines and connecting to other regional rail and subway services.
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B.
Eisenhower Avenue station
Eisenhower Avenue station is a Washington Metro rapid transit stop serving the Yellow Line in Alexandria, Virginia, near the Eisenhower Avenue corridor and adjacent commercial and residential areas.
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C.
57th Street–Seventh Avenue station
The 57th Street–Seventh Avenue station is a New York City Subway station in Midtown Manhattan serving the BMT Broadway Line near major cultural and commercial landmarks.
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D.
Fulton Street station
Fulton Street station is a major New York City Subway complex in Lower Manhattan that serves multiple lines and connects to the Fulton Center transit hub.
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E.
Belmont Center station
Belmont Center station is a Massachusetts Bay Transportation Authority (MBTA) commuter rail stop located in the commercial center of Belmont, Massachusetts.
- 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: 15th Street station Target entity description: 15th Street station is a major underground transit hub in Center City Philadelphia that connects SEPTA’s subway–surface trolleys with the Market–Frankford Line and nearby regional rail services.
-
A.
13th Street station
13th Street station is a major underground transit stop in Center City Philadelphia serving SEPTA’s Subway–Surface Trolley Lines and connecting to other regional rail and subway services.
-
B.
Eisenhower Avenue station
Eisenhower Avenue station is a Washington Metro rapid transit stop serving the Yellow Line in Alexandria, Virginia, near the Eisenhower Avenue corridor and adjacent commercial and residential areas.
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C.
57th Street–Seventh Avenue station
The 57th Street–Seventh Avenue station is a New York City Subway station in Midtown Manhattan serving the BMT Broadway Line near major cultural and commercial landmarks.
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D.
Fulton Street station
Fulton Street station is a major New York City Subway complex in Lower Manhattan that serves multiple lines and connects to the Fulton Center transit hub.
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E.
Belmont Center station
Belmont Center station is a Massachusetts Bay Transportation Authority (MBTA) commuter rail stop located in the commercial center of Belmont, Massachusetts.
- F. None of above. chosen
Statements (43)
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: 15th Street station Description of subject: 15th Street station is a major underground transit hub in Center City Philadelphia that connects SEPTA’s subway–surface trolleys with the Market–Frankford Line and nearby regional rail services.
Referenced by (11)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
City Hall station (SEPTA)
this entity surface form:
15th Street station (SEPTA Market–Frankford Line)
this entity surface form:
15th Street Station
this entity surface form:
15th Street Station
this entity surface form:
15th Street Station
subject surface form:
Green Line (SEPTA)
this entity surface form:
15th Street Station