Keio Corporation
E138695
Keio Corporation is a major Japanese private railway and transportation company operating rail lines and related services in the Tokyo metropolitan area.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Keio Corporation canonical | 48 |
| Keio Group | 6 |
| Keio Corporation (through subsidiaries) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1195426 — 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 Corporation Context triple: [Shibuya Station, operator, Keio Corporation]
-
A.
Tokyu Corporation
Tokyu Corporation is a major Japanese private railway and real estate company based in Tokyo, known for operating extensive rail networks and developing commercial and residential areas, particularly around Shibuya.
-
B.
Tokyo Tsushin Kogyo
Tokyo Tsushin Kogyo was the original name of the Japanese electronics company that later became globally known as Sony.
-
C.
Kashio Seisakujo
Kashio Seisakujo was the original small Japanese manufacturing workshop founded by the Kashio brothers that evolved into the global electronics company Casio.
-
D.
Jidosha-Seizo Co., Ltd.
Jidosha-Seizo Co., Ltd. was the early Japanese automobile manufacturing company that evolved into what is known today as Nissan Motor Co., Ltd.
-
E.
Hankyu Hanshin Holdings, Inc.
Hankyu Hanshin Holdings, Inc. is a major Japanese corporate group centered on railway, real estate, and entertainment businesses, best known for operating the Hankyu and Hanshin railway lines and related enterprises in the Kansai region.
- 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 Corporation Target entity description: Keio Corporation is a major Japanese private railway and transportation company operating rail lines and related services in the Tokyo metropolitan area.
-
A.
Tokyu Corporation
Tokyu Corporation is a major Japanese private railway and real estate company based in Tokyo, known for operating extensive rail networks and developing commercial and residential areas, particularly around Shibuya.
-
B.
Tokyo Tsushin Kogyo
Tokyo Tsushin Kogyo was the original name of the Japanese electronics company that later became globally known as Sony.
-
C.
Kashio Seisakujo
Kashio Seisakujo was the original small Japanese manufacturing workshop founded by the Kashio brothers that evolved into the global electronics company Casio.
-
D.
Jidosha-Seizo Co., Ltd.
Jidosha-Seizo Co., Ltd. was the early Japanese automobile manufacturing company that evolved into what is known today as Nissan Motor Co., Ltd.
-
E.
Hankyu Hanshin Holdings, Inc.
Hankyu Hanshin Holdings, Inc. is a major Japanese corporate group centered on railway, real estate, and entertainment businesses, best known for operating the Hankyu and Hanshin railway lines and related enterprises in the Kansai region.
- F. None of above. chosen
Statements (68)
| Predicate | Object |
|---|---|
| instanceOf |
Japanese company
ⓘ
private railway company ⓘ public company ⓘ |
| acceptsCard |
PASMO
ⓘ
Suica ⓘ |
| country | Japan ⓘ |
| electrification | 1,500 V DC overhead catenary ⓘ |
| fareSystem | distance-based fare ⓘ |
| formerName |
Keio Corporation Railway Division
ⓘ
surface form:
Keio Teito Electric Railway
|
| foundedAs |
Seibu Railway
ⓘ
surface form:
Musashi Electric Railway
|
| hasServiceType |
commuter rail
ⓘ
express train ⓘ limited express train ⓘ local train ⓘ |
| headquartersLocation |
Fuchu, Tokyo
ⓘ
Tokyo metropolitan area ⓘ
surface form:
Tokyo Metropolis
|
| inception | 1910 ⓘ |
| industry |
hospitality
ⓘ
public transportation ⓘ rail transport ⓘ real estate ⓘ retail ⓘ |
| legalForm | Kabushiki gaisha ⓘ |
| mainStation | Shinjuku Station ⓘ |
| majorTerminal |
Chofu Station
NERFINISHED
ⓘ
Hashimoto Station NERFINISHED ⓘ Meidaimae Station NERFINISHED ⓘ Shibuya Station ⓘ Takaosanguchi Station NERFINISHED ⓘ |
| memberOf |
Keio Corporation
self-linksurface differs
ⓘ
surface form:
Keio Group
|
| notableFor |
access to Mount Takao
ⓘ
operating commuter rail services in western Tokyo ⓘ rail connections to Tokyo racecourses ⓘ |
| offersService |
bus transportation
ⓘ
department store business ⓘ hotel business ⓘ leisure facilities operation ⓘ real estate leasing ⓘ supermarket business ⓘ |
| operatesInArea |
Kanagawa Prefecture
NERFINISHED
ⓘ
Saitama Prefecture NERFINISHED ⓘ Tokyo ⓘ Tokyo metropolitan area ⓘ Yamanashi Prefecture NERFINISHED ⓘ |
| ownsBrand |
Keio department store
ⓘ
surface form:
Keio Department Store
Keio Store ⓘ |
| ownsLine |
Keio Dōbutsuen Line
ⓘ
surface form:
Keio Dobutsuen Line
Keio Inokashira Line ⓘ Keio Keibajō Line ⓘ
surface form:
Keio Keibajo Line
Keio Line ⓘ Keio New Line ⓘ Keio Sagamihara Line ⓘ Keio Takao Line ⓘ |
| ownsSubsidiary |
Keio Line bus services
ⓘ
surface form:
Keio Bus Chuo
Keio Line bus services ⓘ
surface form:
Keio Bus Higashi
Keio Line bus services ⓘ
surface form:
Keio Bus Minami
Keio Line bus services ⓘ
surface form:
Keio Dentetsu Bus
Keio Plaza Hotel ⓘ Keio Real Estate ⓘ |
| parentOrganization |
Keio Corporation
self-linksurface differs
ⓘ
surface form:
Keio Group
|
| predecessor |
Seibu Railway
ⓘ
surface form:
Musashi Electric Railway
Tokyo Yokohama Electric Railway (portion of lines) ⓘ |
| railGauge | 1,372 mm ⓘ |
| railwayNetworkName |
Keio Corporation Railway Division
ⓘ
surface form:
Keio Electric Railway
|
| renamedTo | Keio Corporation self-link ⓘ |
| stockExchange | Tokyo Stock Exchange ⓘ |
| tickerSymbol | 9008 ⓘ |
| website | https://www.keio.co.jp/ ⓘ |
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 Corporation Description of subject: Keio Corporation is a major Japanese private railway and transportation company operating rail lines and related services in the Tokyo metropolitan area.
Referenced by (55)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Keio Group
this entity surface form:
Keio Group
this entity surface form:
Keio Group
this entity surface form:
Keio Corporation (through subsidiaries)
this entity surface form:
Keio Group
this entity surface form:
Keio Group
this entity surface form:
Keio Group