Keio Corporation Railway Division
E626140
Keio Corporation Railway Division is the rail transport arm of Keio Corporation, operating commuter and interurban railway lines in the Tokyo metropolitan area.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Keio Electric Railway | 2 |
| Keio Corporation Railway Division canonical | 1 |
| Keio Teito Electric Railway | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6154411 — 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 Railway Division Context triple: [Keio fare system, managingOrganization, Keio Corporation Railway Division]
-
A.
Keihan Electric Railway Co., Ltd.
Keihan Electric Railway Co., Ltd. is a major Japanese private railway operator serving the Osaka–Kyoto region, known for its extensive commuter rail network and related transportation and leisure businesses.
-
B.
Meguro-Kamata Electric Railway Company
Meguro-Kamata Electric Railway Company was the original railway operator that later evolved into Tokyu Corporation, a major private railway and transportation conglomerate in the Tokyo area.
-
C.
Sanyo Electric Railway
Sanyo Electric Railway is a Japanese private railway company operating commuter rail services primarily in Hyōgo Prefecture, including routes that interconnect with other major regional rail networks.
-
D.
Odakyu Electric Railway
Odakyu Electric Railway is a major private railway company in Japan that operates commuter and limited express train services connecting central Tokyo with surrounding suburban and regional areas.
-
E.
Tokyu Railways
Tokyu Railways is a major private railway operator in the Greater Tokyo area of Japan, known for its extensive commuter rail network and integration with urban development projects.
- 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 Railway Division Target entity description: Keio Corporation Railway Division is the rail transport arm of Keio Corporation, operating commuter and interurban railway lines in the Tokyo metropolitan area.
-
A.
Keihan Electric Railway Co., Ltd.
Keihan Electric Railway Co., Ltd. is a major Japanese private railway operator serving the Osaka–Kyoto region, known for its extensive commuter rail network and related transportation and leisure businesses.
-
B.
Meguro-Kamata Electric Railway Company
Meguro-Kamata Electric Railway Company was the original railway operator that later evolved into Tokyu Corporation, a major private railway and transportation conglomerate in the Tokyo area.
-
C.
Sanyo Electric Railway
Sanyo Electric Railway is a Japanese private railway company operating commuter rail services primarily in Hyōgo Prefecture, including routes that interconnect with other major regional rail networks.
-
D.
Odakyu Electric Railway
Odakyu Electric Railway is a major private railway company in Japan that operates commuter and limited express train services connecting central Tokyo with surrounding suburban and regional areas.
-
E.
Tokyu Railways
Tokyu Railways is a major private railway operator in the Greater Tokyo area of Japan, known for its extensive commuter rail network and integration with urban development projects.
- F. None of above. chosen
Statements (51)
| Predicate | Object |
|---|---|
| instanceOf |
division of a private railway company
ⓘ
railway operator ⓘ |
| acceptsICCard |
Hayakaken
ⓘ
ICOCA ⓘ Kitaca ⓘ PASMO ⓘ SUGOCA ⓘ Suica ⓘ TOICA ⓘ nimoca ⓘ |
| connectsToArea |
Shinjuku
ⓘ
central Tokyo ⓘ |
| country | Japan ⓘ |
| electrification | 1,500 V DC overhead catenary ⓘ |
| fareSystem | distance-based fare ⓘ |
| gauge | 1,372 mm ⓘ |
| hubStation |
Chofu Station
NERFINISHED
ⓘ
Hashimoto Station NERFINISHED ⓘ Kichijoji Station NERFINISHED ⓘ Meidaimae Station NERFINISHED ⓘ Shinjuku Station ⓘ Takao-san-guchi Station NERFINISHED ⓘ |
| languageOfPassengerInformation |
English
ⓘ
Japanese ⓘ |
| operatesInPrefecture |
Kanagawa Prefecture
ⓘ
Tokyo Prefecture ⓘ |
| operatesInRegion | Tokyo metropolitan area ⓘ |
| operatesLine |
Keio Dobutsuen Line
ⓘ
linked to:
Keio Dōbutsuen Line
Keio Inokashira Line ⓘ Keio Keibajo Line ⓘ
linked to:
Keio Keibajō Line
Keio Line ⓘ Keio New Line ⓘ Keio Sagamihara Line ⓘ Keio Takao Line ⓘ |
| owner | Keio Corporation ⓘ |
| parentOrganization | Keio Corporation ⓘ |
| primaryServiceArea |
Tama area
ⓘ
western Tokyo suburbs ⓘ |
| railwayType |
commuter rail
ⓘ
interurban rail ⓘ |
| rollingStockType | electric multiple units ⓘ |
| safetySystem |
automatic train stop system
ⓘ
train radio system ⓘ |
| servicePattern |
express trains
ⓘ
limited express trains ⓘ local trains ⓘ rapid trains ⓘ semi-express trains ⓘ semi-special express trains ⓘ special express trains ⓘ |
| ticketingSystem | IC card compatible ⓘ |
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 Railway Division Description of subject: Keio Corporation Railway Division is the rail transport arm of Keio Corporation, operating commuter and interurban railway lines in the Tokyo metropolitan area.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Keio Corporation Railway Division
linked to: Keio Corporation Railway Division
linked to: Keio Corporation Railway Division