Tokyo Metro 9000 series EMU
E808448
The Tokyo Metro 9000 series EMU is a Japanese electric multiple unit train type used for commuter services on Tokyo Metro’s Namboku Line and through-services onto lines such as the Tokyu Meguro Line.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Tokyo Metro 9000 series EMU canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9544687 — 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: Tokyo Metro 9000 series EMU Context triple: [Tokyu Meguro Line, rollingStock, Tokyo Metro 9000 series EMU]
-
A.
Tokyo Metro 16000 series
The Tokyo Metro 16000 series is a modern electric multiple unit train type operated by Tokyo Metro, primarily used for commuter services on the Chiyoda Line.
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B.
Tokyo Metro 18000 series
The Tokyo Metro 18000 series is a modern electric multiple unit train operated by Tokyo Metro, designed for through-services on lines such as the Hanzomon Line and connecting suburban routes.
-
C.
Tokyo Metro 13000 series
The Tokyo Metro 13000 series is a modern electric multiple unit train operated by Tokyo Metro, introduced to provide improved comfort, efficiency, and accessibility on urban subway services.
-
D.
Tokyo Metro 17000 series
The Tokyo Metro 17000 series is a modern electric multiple unit train operated by Tokyo Metro, designed for through-services on lines such as the Fukutoshin and Yurakucho Lines with improved energy efficiency and passenger comfort.
-
E.
Tokyo Metro 8000 series
The Tokyo Metro 8000 series is a fleet of electric multiple unit trains introduced in the early 1980s for Tokyo’s subway network, known for their long service life and multiple refurbishment programs.
- 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: Tokyo Metro 9000 series EMU Target entity description: The Tokyo Metro 9000 series EMU is a Japanese electric multiple unit train type used for commuter services on Tokyo Metro’s Namboku Line and through-services onto lines such as the Tokyu Meguro Line.
-
A.
Tokyo Metro 16000 series
The Tokyo Metro 16000 series is a modern electric multiple unit train type operated by Tokyo Metro, primarily used for commuter services on the Chiyoda Line.
-
B.
Tokyo Metro 18000 series
The Tokyo Metro 18000 series is a modern electric multiple unit train operated by Tokyo Metro, designed for through-services on lines such as the Hanzomon Line and connecting suburban routes.
-
C.
Tokyo Metro 13000 series
The Tokyo Metro 13000 series is a modern electric multiple unit train operated by Tokyo Metro, introduced to provide improved comfort, efficiency, and accessibility on urban subway services.
-
D.
Tokyo Metro 17000 series
The Tokyo Metro 17000 series is a modern electric multiple unit train operated by Tokyo Metro, designed for through-services on lines such as the Fukutoshin and Yurakucho Lines with improved energy efficiency and passenger comfort.
-
E.
Tokyo Metro 8000 series
The Tokyo Metro 8000 series is a fleet of electric multiple unit trains introduced in the early 1980s for Tokyo’s subway network, known for their long service life and multiple refurbishment programs.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
commuter train
ⓘ
electric multiple unit ⓘ |
| brakeType |
electronically controlled pneumatic brakes
ⓘ
regenerative brake ⓘ |
| carbodyMaterial |
aluminium alloy
ⓘ
stainless steel ⓘ |
| collectionMethod | pantograph ⓘ |
| compatibleWithLine |
Saitama Rapid Railway Line
ⓘ
Tokyu Meguro Line ⓘ |
| countryOfOperation | Japan ⓘ |
| designedBy |
Teito Rapid Transit Authority engineering division
ⓘ
linked to:
Teito Rapid Transit Authority
|
| designedFor |
commuter services
ⓘ
through-services with other railway companies ⓘ |
| designedForSignalling | ATO operation on Namboku Line ⓘ |
| doorConfiguration | 4 pairs per side per car ⓘ |
| electricSystem | 1,500 V DC overhead catenary ⓘ |
| enteredService | 26 March 1991 ⓘ |
| formation | 6-car fixed formation ⓘ |
| hasCab | driver-only operation capable (with ATO support) ⓘ |
| hasInteriorFeature |
LED destination indicators
ⓘ
longitudinal bench seating ⓘ passenger information displays ⓘ |
| hasMultipleBatches | yes ⓘ |
| introduced | 1991 ⓘ |
| laterBatchesFeature |
improved energy efficiency
ⓘ
revised front-end design ⓘ updated interior fittings ⓘ |
| manufacturer | various Japanese rolling stock manufacturers under contract ⓘ |
| numberOfCarsPerSet | 6 ⓘ |
| operatesOnLine | Tokyo Metro Namboku Line ⓘ |
| operatesThroughServiceOnLine | Tokyu Meguro Line ⓘ |
| operator | Tokyo Metro ⓘ |
| owner | Tokyo Metro ⓘ |
| powerOutput | variable by batch (approx. 160 kW-class motors) ⓘ |
| propulsionControl |
VVVF inverter control (later sets)
ⓘ
chopper control (early sets) ⓘ |
| railwaySystem | Tokyo Metro ⓘ |
| safetySystem |
Automatic Train Control (ATC)
ⓘ
Automatic Train Operation (ATO) ⓘ |
| servicePattern |
through-running between Namboku Line and Saitama Rapid Railway Line
ⓘ
through-running between Namboku Line and Tokyu Meguro Line ⓘ |
| serviceType | all-stations stopping services ⓘ |
| successorOf | older stock on Namboku Line ⓘ |
| trackGauge | 1,067 mm ⓘ |
| traction | electric ⓘ |
| usedFor | urban commuter transport ⓘ |
| usedInRegion |
Tokyo Metropolis
ⓘ
linked to:
Tokyo Metropolis, Japan
|
| usedOn |
suburban surface sections
ⓘ
underground sections ⓘ |
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: Tokyo Metro 9000 series EMU Description of subject: The Tokyo Metro 9000 series EMU is a Japanese electric multiple unit train type used for commuter services on Tokyo Metro’s Namboku Line and through-services onto lines such as the Tokyu Meguro Line.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.