Keio railway network
E178944
The Keio railway network is a private railway system in the Tokyo metropolitan area operated by Keio Corporation, linking central Tokyo with its western suburbs through multiple commuter lines.
All labels observed (5)
| Label | Occurrences |
|---|---|
| Keio Railway network | 5 |
| Keio Electric Railway network | 2 |
| Keio Corporation lines | 1 |
| Keio Group transport network | 1 |
| Keio railway network canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1195458 — 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: Keio railway network Context triple: [Shibuya Station, partOfTransportNetwork, Keio railway network]
-
A.
Tokyu railway network
The Tokyu railway network is a major private rail system in the Greater Tokyo area, operated by Tokyu Corporation and serving key suburban and urban corridors including central hubs like Shibuya.
-
B.
JR East urban network
The JR East urban network is a dense system of commuter and suburban railway lines in the Greater Tokyo and surrounding metropolitan areas operated by East Japan Railway Company (JR East).
-
C.
Keio Inokashira Line
The Keio Inokashira Line is a private railway line in Tokyo operated by Keio Corporation, connecting Shibuya with the western suburb of Kichijōji and serving several popular residential and commercial districts along the way.
-
D.
Keihan Main Line
The Keihan Main Line is a major Japanese railway line operated by Keihan Electric Railway, connecting Osaka and Kyoto and serving as a key commuter and intercity route in the Kansai region.
-
E.
JR Saikyo Line
The JR Saikyo Line is a major commuter rail line in the Tokyo metropolitan area operated by JR East, connecting central Tokyo with Saitama Prefecture and serving key hubs such as Shibuya and Shinjuku.
- 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: Keio railway network Target entity description: The Keio railway network is a private railway system in the Tokyo metropolitan area operated by Keio Corporation, linking central Tokyo with its western suburbs through multiple commuter lines.
-
A.
Tokyu railway network
The Tokyu railway network is a major private rail system in the Greater Tokyo area, operated by Tokyu Corporation and serving key suburban and urban corridors including central hubs like Shibuya.
-
B.
JR East urban network
The JR East urban network is a dense system of commuter and suburban railway lines in the Greater Tokyo and surrounding metropolitan areas operated by East Japan Railway Company (JR East).
-
C.
Keio Inokashira Line
The Keio Inokashira Line is a private railway line in Tokyo operated by Keio Corporation, connecting Shibuya with the western suburb of Kichijōji and serving several popular residential and commercial districts along the way.
-
D.
Keihan Main Line
The Keihan Main Line is a major Japanese railway line operated by Keihan Electric Railway, connecting Osaka and Kyoto and serving as a key commuter and intercity route in the Kansai region.
-
E.
JR Saikyo Line
The JR Saikyo Line is a major commuter rail line in the Tokyo metropolitan area operated by JR East, connecting central Tokyo with Saitama Prefecture and serving key hubs such as Shibuya and Shinjuku.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
commuter rail network
ⓘ
private railway network ⓘ |
| connects | Shinjuku area and western Tokyo suburbs ⓘ |
| connectsTo |
JR East urban network
ⓘ
surface form:
JR East network
Odakyu Electric Railway network ⓘ Toei Subway ⓘ
surface form:
Toei Subway network
Tokyo Metro ⓘ
surface form:
Tokyo Metro network
|
| country | Japan ⓘ |
| electrification | 1,500 V DC overhead catenary ⓘ |
| fareSystem | distance-based fare system ⓘ |
| gauge | 1,372 mm ⓘ |
| hasBranchLinePurpose |
access to leisure facilities
ⓘ
access to residential areas ⓘ |
| hasBrandColor | purple ⓘ |
| hasLine |
Keio Dōbutsuen Line
NERFINISHED
ⓘ
Keio Inokashira Line NERFINISHED ⓘ Keio Keibajō Line NERFINISHED ⓘ Keio Line NERFINISHED ⓘ Keio New Line ⓘ Keio Sagamihara Line NERFINISHED ⓘ Keio Takao Line NERFINISHED ⓘ |
| hasRollingStockType | electric multiple units ⓘ |
| hasServiceType |
express trains
ⓘ
limited express trains ⓘ local trains ⓘ rapid trains ⓘ |
| hasStationNear | Tokyo Racecourse ⓘ |
| locatedIn |
Japan
ⓘ
Tokyo metropolitan area ⓘ |
| majorStation | Shibuya Station ⓘ |
| operator | Keio Corporation ⓘ |
| ownedBy | Keio Corporation ⓘ |
| partOf |
Tokyo metropolitan rail network
ⓘ
surface form:
Greater Tokyo rail network
|
| peakUsage | commuter rush hours ⓘ |
| primaryTerminus | Shinjuku Station ⓘ |
| primaryUse | commuter transport ⓘ |
| regionServed | Tama area ⓘ |
| safetySystem |
automatic train control on some sections
ⓘ
automatic train stop system ⓘ |
| serves |
central Tokyo
ⓘ
western suburbs of Tokyo ⓘ |
| servesPrefecture |
Kanagawa Prefecture
NERFINISHED
ⓘ
Tokyo Prefecture ⓘ |
| ticketing |
accepts IC cards such as PASMO
ⓘ
accepts IC cards such as Suica ⓘ |
| trackType | standard gauge ⓘ |
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: Keio railway network Description of subject: The Keio railway network is a private railway system in the Tokyo metropolitan area operated by Keio Corporation, linking central Tokyo with its western suburbs through multiple commuter lines.
Referenced by (10)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Keio Electric Railway network
this entity surface form:
Keio Railway network
this entity surface form:
Keio Group transport network
this entity surface form:
Keio Electric Railway network
this entity surface form:
Keio Railway network
this entity surface form:
Keio Railway network
this entity surface form:
Keio Railway network
this entity surface form:
Keio Railway network