Tokyu Railways
E622954
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.
All labels observed (7)
| Label | Occurrences |
|---|---|
| Tokyu Railways canonical | 3 |
| 東急電鉄 | 3 |
| Tamaden (Tokyo Electric Railway) | 1 |
| Tokyo-Yokohama Electric Railway | 1 |
| Tokyu Electric Railway | 1 |
| Tokyu Railway | 1 |
| 東京急行電鉄 | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6154363 — 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: Tokyu Railways Context triple: [Tokyu Corporation, hasSubsidiary, Tokyu Railways]
-
A.
Seibu Railway
Seibu Railway is a major private railway operator in the Greater Tokyo area of Japan, running extensive commuter and interurban train services across Tokyo and Saitama.
-
B.
Tobu Railway
Tobu Railway is a major private railway company in Japan that operates extensive rail networks in the Greater Tokyo area and surrounding regions.
-
C.
Tokyo Metropolitan Bureau of Transportation
The Tokyo Metropolitan Bureau of Transportation is the local government agency that operates key public transit services in Tokyo, including subways, trams, and buses.
-
D.
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.
-
E.
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.
- 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: Tokyu Railways Target entity description: 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.
-
A.
Seibu Railway
Seibu Railway is a major private railway operator in the Greater Tokyo area of Japan, running extensive commuter and interurban train services across Tokyo and Saitama.
-
B.
Tobu Railway
Tobu Railway is a major private railway company in Japan that operates extensive rail networks in the Greater Tokyo area and surrounding regions.
-
C.
Tokyo Metropolitan Bureau of Transportation
The Tokyo Metropolitan Bureau of Transportation is the local government agency that operates key public transit services in Tokyo, including subways, trams, and buses.
-
D.
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.
-
E.
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.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
private railway operator
ⓘ
railway company ⓘ |
| connectsWith |
JR East
ⓘ
linked to:
East Japan Railway Company
Toei Subway ⓘ Tokyo Metro ⓘ Yokohama Minatomirai Railway ⓘ
linked to:
Yokohama Minatomirai Railway Company
|
| country | Japan ⓘ |
| develops |
commercial facilities near stations
ⓘ
residential areas along its lines ⓘ |
| electrification | 1,500 V DC overhead catenary ⓘ |
| fareCard |
PASMO
ⓘ
Suica ⓘ |
| fareSystem | IC card compatible ⓘ |
| focusesOn | transit-oriented development ⓘ |
| formerName |
Meguro-Kamata Electric Railway
ⓘ
linked to:
Meguro-Kamata Electric Railway Company
|
| headquartersLocation |
Shibuya, Tokyo
ⓘ
linked to:
Shibuya, Tokyo, Japan
|
| industry |
public transportation
ⓘ
rail transport ⓘ real estate development ⓘ |
| knownFor |
dense commuter network
ⓘ
integration with urban development ⓘ railway-oriented real estate projects ⓘ |
| languageOfName | Japanese ⓘ |
| locatedIn |
Greater Tokyo Area
ⓘ
linked to:
Tokyo metropolitan area
Kantō region ⓘ |
| networkType |
commuter rail
ⓘ
interurban railway ⓘ |
| offersService |
express trains
ⓘ
limited express trains ⓘ local trains ⓘ |
| operates |
Tokyu Den-en-toshi Line
ⓘ
Tokyu Ikegami Line ⓘ
linked to:
Tōkyū Ikegami Line
Tokyu Kodomonokuni Line ⓘ Tokyu Meguro Line ⓘ Tokyu Oimachi Line ⓘ
linked to:
Tōkyū Ōimachi Line
Tokyu Setagaya Line ⓘ Tokyu Shin-Yokohama Line ⓘ Tokyu Tamagawa Line ⓘ
linked to:
Tōkyū Tamagawa Line
Tokyu Toyoko Line ⓘ |
| parentCompany | Tokyu Corporation ⓘ |
| partOf |
Tokyu Group
ⓘ
linked to:
Tokyu Corporation
|
| railwaySignalling | automatic train control ⓘ |
| regionServed |
eastern Kanagawa
ⓘ
southwestern Tokyo ⓘ |
| serves |
Kanagawa Prefecture
ⓘ
Tokyo Metropolis ⓘ
linked to:
Tokyo Prefecture
|
| trackGauge | 1,067 mm ⓘ |
| transportMode | rail ⓘ |
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: Tokyu Railways Description of subject: 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.
Referenced by (11)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Tokyu Railways
Tokyo Yokohama Electric Railway (portion of lines)
→
formerOperator
→
Tokyo-Yokohama Electric Railway
ⓘ
linked to: Tokyu Railways
linked to: Tokyu Railways
linked to: Tokyu Railways