Tokyo Metro Fukutoshin Line (at Ikebukuro Station)
E630281
The Tokyo Metro Fukutoshin Line at Ikebukuro Station is a major Tokyo subway line and hub section that provides through-services to multiple private railways, facilitating heavy commuter traffic across central and suburban areas.
All labels observed (3)
How this entity was disambiguated
This entity first appeared as the object of triple T6795016 — 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 Fukutoshin Line (at Ikebukuro Station) Context triple: [Tobu Tojo Line, connectsWith, Tokyo Metro Fukutoshin 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.
Tokyo Metro Yurakucho Line (at Ikebukuro Station)
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.
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C.
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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D.
Tokyo Metro Ginza Line at Kanda Station
Tokyo Metro Ginza Line at Kanda Station is the Ginza Line subway stop in Tokyo’s Kanda district, providing underground metro service and transfers to JR railway lines.
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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 Fukutoshin Line (at Ikebukuro Station) Target entity description: The Tokyo Metro Fukutoshin Line at Ikebukuro Station is a major Tokyo subway line and hub section that provides through-services to multiple private railways, facilitating heavy commuter traffic across central and suburban areas.
-
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.
Tokyo Metro Yurakucho Line (at Ikebukuro Station)
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.
-
C.
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.
-
D.
Tokyo Metro Ginza Line at Kanda Station
Tokyo Metro Ginza Line at Kanda Station is the Ginza Line subway stop in Tokyo’s Kanda district, providing underground metro service and transfers to JR railway lines.
-
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 (47)
| Predicate | Object |
|---|---|
| instanceOf |
railway station section
ⓘ
subway line segment ⓘ |
| adjacentStationTowardsShibuya | Zoshigaya Station NERFINISHED ⓘ |
| adjacentStationTowardsWakoshi | Senkawa Station NERFINISHED ⓘ |
| connectsWith |
JR East lines at Ikebukuro Station
ⓘ
Seibu Ikebukuro Line at Ikebukuro Station ⓘ
linked to:
Seibu Ikebukuro Line at Ikebukuro
Tobu Tojo Line at Ikebukuro Station ⓘ Tokyo Metro Marunouchi Line ⓘ Tokyo Metro Yurakucho Line ⓘ
linked to:
Tokyo Metro Yurakuchō Line
|
| electrification | 1500 V DC overhead catenary ⓘ |
| fareSystem | Tokyo Metro fare system ⓘ |
| fareZone | central Tokyo zone ⓘ |
| hasPlatformScreenDoors | yes ⓘ |
| languageOfSignage |
Chinese
ⓘ
English ⓘ Japanese ⓘ Korean ⓘ |
| lineCode | F ⓘ |
| lineColor | brown ⓘ |
| locatedIn |
Ikebukuro Station
ⓘ
Tokyo, Japan ⓘ
linked to:
Tokyo
Toshima, Tokyo ⓘ |
| numberOfTracks | 2 ⓘ |
| openingDateOnLine | 2008 ⓘ |
| operator | Tokyo Metro ⓘ |
| partOf | Tokyo Metro Fukutoshin Line ⓘ |
| platformType |
island platform
ⓘ
underground platform ⓘ |
| primaryUsage | heavy commuter traffic ⓘ |
| role |
commuter corridor between central Tokyo and suburbs
ⓘ
major transfer hub ⓘ |
| safetySystem |
Automatic Train Control
ⓘ
Automatic Train Stop ⓘ |
| servesArea |
Ikebukuro commercial district
ⓘ
linked to:
Ikebukuro
northwestern Tokyo suburbs via through services ⓘ |
| serviceType |
commuter rail
ⓘ
rapid transit ⓘ |
| stationCode | F09 ⓘ |
| structureType | underground ⓘ |
| throughServiceTo |
Minatomirai Line
ⓘ
Seibu Ikebukuro Line ⓘ Tobu Tojo Line ⓘ Tokyu Toyoko Line ⓘ |
| ticketing |
IC cards accepted
ⓘ
PASMO accepted ⓘ Suica accepted ⓘ |
| trackGauge | 1067 mm ⓘ |
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 Fukutoshin Line (at Ikebukuro Station) Description of subject: The Tokyo Metro Fukutoshin Line at Ikebukuro Station is a major Tokyo subway line and hub section that provides through-services to multiple private railways, facilitating heavy commuter traffic across central and suburban areas.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Tokyo Metro Fukutoshin Line (at Ikebukuro Station)
Tokyo Metro Yurakucho Line (Ikebukuro Station)
→
connectsTo
→
Tokyo Metro Fukutoshin Line (Ikebukuro Station)
ⓘ
subject linked to:
Tokyo Metro Yurakucho Line (at Ikebukuro Station)
linked to: Tokyo Metro Fukutoshin Line (at Ikebukuro Station)
Tokyo Metro Yurakucho Line (Ikebukuro Station)
→
hasTicketGatesSharedWith
→
Tokyo Metro Fukutoshin Line (Ikebukuro Station)
ⓘ
subject linked to:
Tokyo Metro Yurakucho Line (at Ikebukuro Station)
linked to: Tokyo Metro Fukutoshin Line (at Ikebukuro Station)