Tokyo Metro Yurakucho Line (at Ikebukuro Station)
E629213
The Tokyo Metro Yurakucho Line at Ikebukuro Station is a major Tokyo subway line stop that serves as a key transfer point between central Tokyo’s subway network and suburban rail services such as the Tobu Tojo Line.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Tokyo Metro Yurakucho Line (at Ikebukuro Station) canonical | 1 |
| Tokyo Metro Yurakucho Line at Ikebukuro Station | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6795015 — 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: Tokyo Metro Yurakucho Line (at Ikebukuro Station) Context triple: [Tobu Tojo Line, connectsWith, Tokyo Metro Yurakucho Line (at Ikebukuro Station)]
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A.
Tokyo Metro Marunouchi Line (at Ikebukuro Station)
The Tokyo Metro Marunouchi Line at Ikebukuro Station is a major Tokyo subway line stop that serves as a key transfer point between central Tokyo’s metro network and multiple suburban and urban rail lines.
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B.
JR Saikyo Line (at Ikebukuro Station)
The JR Saikyo Line at Ikebukuro Station is a major JR East commuter rail line in Tokyo that provides rapid north–south access through the city and connects with multiple private and subway lines.
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C.
Tokyo Metro Yurakucho Line at Nagatacho
Tokyo Metro Yurakucho Line at Nagatacho is a subway line stop in central Tokyo that serves the Nagatacho district and connects with multiple other Tokyo Metro lines for convenient transfers.
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D.
Tokyo Metro Chiyoda Line at Omotesando
The Tokyo Metro Chiyoda Line at Omotesando is a major subway line stop in central Tokyo that serves the fashionable Omotesando district and connects with other key metro routes.
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E.
Tokyo Metro Hibiya Line at Kayabacho
Tokyo Metro Hibiya Line at Kayabacho is a busy Tokyo subway line stop in the Nihonbashi business district, providing key access to central commercial and financial areas.
- 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: Tokyo Metro Yurakucho Line (at Ikebukuro Station) Target entity description: The Tokyo Metro Yurakucho Line at Ikebukuro Station is a major Tokyo subway line stop that serves as a key transfer point between central Tokyo’s subway network and suburban rail services such as the Tobu Tojo Line.
-
A.
Tokyo Metro Marunouchi Line (at Ikebukuro Station)
The Tokyo Metro Marunouchi Line at Ikebukuro Station is a major Tokyo subway line stop that serves as a key transfer point between central Tokyo’s metro network and multiple suburban and urban rail lines.
-
B.
JR Saikyo Line (at Ikebukuro Station)
The JR Saikyo Line at Ikebukuro Station is a major JR East commuter rail line in Tokyo that provides rapid north–south access through the city and connects with multiple private and subway lines.
-
C.
Tokyo Metro Yurakucho Line at Nagatacho
Tokyo Metro Yurakucho Line at Nagatacho is a subway line stop in central Tokyo that serves the Nagatacho district and connects with multiple other Tokyo Metro lines for convenient transfers.
-
D.
Tokyo Metro Chiyoda Line at Omotesando
The Tokyo Metro Chiyoda Line at Omotesando is a major subway line stop in central Tokyo that serves the fashionable Omotesando district and connects with other key metro routes.
-
E.
Tokyo Metro Hibiya Line at Kayabacho
Tokyo Metro Hibiya Line at Kayabacho is a busy Tokyo subway line stop in the Nihonbashi business district, providing key access to central commercial and financial areas.
- F. None of above. chosen
Statements (42)
| Predicate | Object |
|---|---|
| instanceOf |
metro station on a line
ⓘ
railway station stop ⓘ |
| adjacentStationTowards |
Higashi-Ikebukuro Station
ⓘ
Kanamecho Station NERFINISHED ⓘ |
| connectedBy | underground passageways within Ikebukuro Station ⓘ |
| connectsTo |
JR East lines at Ikebukuro Station
ⓘ
Seibu Ikebukuro Line ⓘ Tobu Tojo Line ⓘ Tokyo Metro Fukutoshin Line (Ikebukuro Station) ⓘ Tokyo Metro Marunouchi Line (Ikebukuro Station) ⓘ |
| fareIntegrationWith | other Tokyo Metro lines at Ikebukuro ⓘ |
| fareSystem | Tokyo Metro fare system ⓘ |
| hasAccessibilityFeature |
barrier-free routes
ⓘ
elevators ⓘ escalators ⓘ |
| hasFunction | interchange between Tokyo Metro and Tobu Tojo Line ⓘ |
| hasPassengerFlow | high daily ridership ⓘ |
| hasPlatformType | underground platforms ⓘ |
| hasServiceType | local trains ⓘ |
| hasSignageLanguage |
Chinese
ⓘ
English ⓘ Japanese ⓘ Korean ⓘ |
| hasTicketGatesSharedWith | Tokyo Metro Fukutoshin Line (Ikebukuro Station) ⓘ |
| lineCode | Y ⓘ |
| locatedIn |
Japan
ⓘ
Tokyo ⓘ Toshima, Tokyo ⓘ |
| locatedInComplex | Ikebukuro Station multi-operator hub ⓘ |
| locatedUnder | Ikebukuro commercial district ⓘ |
| near | Ikebukuro shopping and entertainment area ⓘ |
| operator | Tokyo Metro ⓘ |
| ownedBy | Tokyo Metro ⓘ |
| partOf | Ikebukuro Station ⓘ |
| partOfNetwork |
Tokyo Metro subway network
ⓘ
linked to:
Tokyo Metro
|
| role | major transfer point between central Tokyo subway and suburban rail services ⓘ |
| safetyFeature | platform edge doors (on most platforms) ⓘ |
| servedBy |
Tokyo Metro Yurakucho Line
ⓘ
linked to:
Tokyo Metro Yurakuchō Line
|
| servesArea |
Ikebukuro district
ⓘ
linked to:
Ikebukuro
|
| stationCode | Y-09 ⓘ |
| ticketing | IC cards such as Suica and PASMO accepted ⓘ |
| usedFor | commuter traffic between Saitama suburbs and central Tokyo ⓘ |
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: Tokyo Metro Yurakucho Line (at Ikebukuro Station) Description of subject: The Tokyo Metro Yurakucho Line at Ikebukuro Station is a major Tokyo subway line stop that serves as a key transfer point between central Tokyo’s subway network and suburban rail services such as the Tobu Tojo Line.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
JR Saikyo Line (at Ikebukuro Station)
→
connectsToLineAtStation
→
Tokyo Metro Yurakucho Line at Ikebukuro Station
ⓘ
linked to: Tokyo Metro Yurakucho Line (at Ikebukuro Station)