Keio 1000 series EMU
E145989
The Keio 1000 series EMU is a Japanese electric multiple unit train operated by Keio Corporation, known for serving Tokyo’s Inokashira Line with modern, colorful commuter rolling stock.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Keio 1000 series EMU canonical | 1 |
| Keio commuter EMU fleet | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1195535 — 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 1000 series EMU Context triple: [Keio Inokashira Line, rollingStock, Keio 1000 series EMU]
-
A.
Tokyo Metro 10000 series
The Tokyo Metro 10000 series is a fleet of modern electric multiple unit trains operated by Tokyo Metro, known for serving through-services on several interconnected subway and private railway lines in the Tokyo area.
-
B.
Seibu 6000 series
The Seibu 6000 series is a Japanese electric multiple unit train type operated by Seibu Railway, commonly used for through-services on Tokyo subway lines.
-
C.
Tokyo Metro 1000 series
The Tokyo Metro 1000 series is a modern electric multiple unit train used on Tokyo’s subway system, designed with retro-inspired styling that pays homage to the original Ginza Line cars while incorporating contemporary technology and comfort features.
-
D.
E231 series EMU
The E231 series EMU is a widely used Japanese commuter train type operated by JR East, known for its high-capacity, rapid-transit service in the Greater Tokyo area.
-
E.
Tokyu 5050 series
The Tokyu 5050 series is a Japanese electric multiple unit commuter train type operated by Tokyu Corporation and used on through-services with Tokyo Metro and other railway lines in the Tokyo area.
- 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 1000 series EMU Target entity description: The Keio 1000 series EMU is a Japanese electric multiple unit train operated by Keio Corporation, known for serving Tokyo’s Inokashira Line with modern, colorful commuter rolling stock.
-
A.
Tokyo Metro 10000 series
The Tokyo Metro 10000 series is a fleet of modern electric multiple unit trains operated by Tokyo Metro, known for serving through-services on several interconnected subway and private railway lines in the Tokyo area.
-
B.
Seibu 6000 series
The Seibu 6000 series is a Japanese electric multiple unit train type operated by Seibu Railway, commonly used for through-services on Tokyo subway lines.
-
C.
Tokyo Metro 1000 series
The Tokyo Metro 1000 series is a modern electric multiple unit train used on Tokyo’s subway system, designed with retro-inspired styling that pays homage to the original Ginza Line cars while incorporating contemporary technology and comfort features.
-
D.
E231 series EMU
The E231 series EMU is a widely used Japanese commuter train type operated by JR East, known for its high-capacity, rapid-transit service in the Greater Tokyo area.
-
E.
Tokyu 5050 series
The Tokyu 5050 series is a Japanese electric multiple unit commuter train type operated by Tokyu Corporation and used on through-services with Tokyo Metro and other railway lines in the Tokyo area.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
commuter train
ⓘ
electric multiple unit ⓘ |
| carbodyMaterial | stainless steel ⓘ |
| country | Japan ⓘ |
| designedFor |
high passenger turnover at stations
ⓘ
high-frequency urban operation ⓘ one-man operation capability ⓘ short-distance trips ⓘ |
| doorConfiguration | 3 pairs per side per car ⓘ |
| electrificationSystem | 1,500 V DC overhead catenary ⓘ |
| formationType | 5-car fixed formation ⓘ |
| hasFeature |
air conditioning
ⓘ
color-coded sets for easy identification ⓘ end gangway doors on intermediate cars ⓘ longitudinal seating in most cars ⓘ modern interior design ⓘ multiple-unit control capability ⓘ passenger information displays ⓘ priority seating areas ⓘ wheelchair space ⓘ wide doorways for rapid boarding and alighting ⓘ |
| hasInteriorLayout | open gangways between cars ⓘ |
| hasLivery | distinctive front-end color panels ⓘ |
| lineType | interurban ⓘ |
| network |
Keio railway network
ⓘ
surface form:
Keio Electric Railway network
|
| numberOfCarsPerTrainset | 5 ⓘ |
| operator | Keio Corporation ⓘ |
| operatorColorScheme | multiple body color variations ⓘ |
| operatorType | private railway operator ⓘ |
| owner | Keio Corporation ⓘ |
| powerCollectionMethod | pantograph ⓘ |
| primaryLineServed | Keio Inokashira Line ⓘ |
| railwayCompanyHeadquartersLocation | Tokyo ⓘ |
| railwayLineOwner | Keio Corporation ⓘ |
| railwaySystem | Japanese private railway system ⓘ |
| rollingStockFamily |
Keio 1000 series EMU
self-linksurface differs
ⓘ
surface form:
Keio commuter EMU fleet
|
| safetySystem | automatic train stop (ATS) compatible ⓘ |
| serviceCategory | urban rail transit ⓘ |
| serviceRegion |
Tokyo
ⓘ
Tokyo metropolitan area ⓘ |
| serviceStatus | in operation ⓘ |
| serviceType | commuter service ⓘ |
| trackGauge | 1,067 mm ⓘ |
| usedBy | commuters ⓘ |
| usedOn |
all-stations services
ⓘ
double-track line operations ⓘ rapid services ⓘ |
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 1000 series EMU Description of subject: The Keio 1000 series EMU is a Japanese electric multiple unit train operated by Keio Corporation, known for serving Tokyo’s Inokashira Line with modern, colorful commuter rolling stock.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Keio commuter EMU fleet