Meguro-Kamata Electric Railway Company
E620710
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.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Meguro-Kamata Electric Railway | 2 |
| Meguro-Kamata Electric Railway Company canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T6154360 — 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: Meguro-Kamata Electric Railway Company Context triple: [Tokyu Corporation, foundedAs, Meguro-Kamata Electric Railway Company]
-
A.
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.
-
B.
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.
-
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.
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.
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.
- 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: Meguro-Kamata Electric Railway Company Target entity description: 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.
-
A.
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.
-
B.
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.
-
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.
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.
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.
- F. None of above. chosen
Statements (25)
| Predicate | Object |
|---|---|
| instanceOf |
private railway operator
ⓘ
railway company ⓘ |
| alsoKnownAs |
Meguro-Kamata Dentetsu
ⓘ
Meguro-Kamata Electric Railway ⓘ
linked to:
Meguro-Kamata Electric Railway Company
|
| continent | Asia ⓘ |
| country | Japan ⓘ |
| evolvedInto | Tokyu Corporation ⓘ |
| hasSuccessorOrganization | Tokyu Corporation ⓘ |
| headquartersLocation | Tokyo ⓘ |
| industry | rail transport ⓘ |
| languageOfName | Japanese ⓘ |
| locatedIn | Tokyo metropolitan area ⓘ |
| locatedInTimeZone | Japan Standard Time ⓘ |
| operatedArea |
Greater Tokyo Area
ⓘ
linked to:
Tokyo metropolitan area
|
| operatedIn |
Kanagawa Prefecture
ⓘ
Tokyo Prefecture ⓘ |
| operatedLine |
Ikegami Line
ⓘ
Meguro Line ⓘ
linked to:
Tokyu Meguro Line
|
| operatedServiceType |
commuter rail
ⓘ
passenger transport ⓘ |
| operatedStationsIn |
Kamata
ⓘ
Meguro ⓘ
linked to:
Meguro Ward
|
| partOf |
Tokyu Group
ⓘ
linked to:
Tokyu Corporation
|
| successor | Tokyu Corporation ⓘ |
| transportMode | railway ⓘ |
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: Meguro-Kamata Electric Railway Company Description of subject: 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.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Meguro-Kamata Electric Railway Company
linked to: Meguro-Kamata Electric Railway Company