Tokyo Metro 9000 series
E895609
The Tokyo Metro 9000 series is a fleet of electric multiple unit trains operated by Tokyo Metro, primarily known for serving the Namboku Line with modern, air-conditioned commuter services.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Tokyo Metro 9000 series canonical | 2 |
| Tokyo Metro 900 series | 1 |
| Tokyo Metro 9000 series family | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10945547 — 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 Context triple: [Tokyo Metro Namboku Line, rollingStock, Tokyo Metro 9000 series]
-
A.
Tokyo Metro 7000 series
The Tokyo Metro 7000 series is a Japanese electric multiple unit train type operated by Tokyo Metro, primarily used on busy commuter subway lines in Tokyo.
-
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 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.
-
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 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.
- 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 Target entity description: The Tokyo Metro 9000 series is a fleet of electric multiple unit trains operated by Tokyo Metro, primarily known for serving the Namboku Line with modern, air-conditioned commuter services.
-
A.
Tokyo Metro 7000 series
The Tokyo Metro 7000 series is a Japanese electric multiple unit train type operated by Tokyo Metro, primarily used on busy commuter subway lines in Tokyo.
-
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 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.
-
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 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.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
Japanese train type
ⓘ
commuter train ⓘ electric multiple unit ⓘ |
| airConditioned | yes ⓘ |
| brakeType | regenerative braking ⓘ |
| carBodyMaterial | aluminium ⓘ |
| controlMethod | VVVF inverter control ⓘ |
| country | Japan ⓘ |
| designedFor |
barrier-free access
ⓘ
high-frequency urban operation ⓘ one-man operation capability (driver-only operation on some services) ⓘ underground operation ⓘ |
| doorType | sliding doors ⓘ |
| electrificationSystem | 1,500 V DC overhead ⓘ |
| formation | 6-car sets ⓘ |
| hasFeature |
LED destination indicators
ⓘ
air-conditioning units on each car ⓘ end gangways between cars ⓘ longitudinal seating in most cars ⓘ |
| hasInteriorFeature |
priority seating areas
ⓘ
wheelchair spaces ⓘ |
| introducedIntoService | 1991 ⓘ |
| lineColorAssociation | Namboku Line green ⓘ |
| lineTypeServed | subway line ⓘ |
| network |
Tokyo Metro network
ⓘ
linked to:
Tokyo Metro
|
| numberOfDoorsPerSidePerCar | 3 ⓘ |
| operator |
Tokyo Metro
ⓘ
Tokyo Metro Namboku Line NERFINISHED ⓘ Tokyo Metro Railway Company ⓘ
linked to:
Teito Rapid Transit Authority
|
| operatorPredecessor | Teito Rapid Transit Authority ⓘ |
| operatorType | subway operator ⓘ |
| passengerService | all-stations stopping services ⓘ |
| powerCollectionMethod | overhead catenary ⓘ |
| primaryLineServed | Tokyo Metro Namboku Line NERFINISHED ⓘ |
| serviceArea | Tokyo metropolitan area ⓘ |
| serviceStatus | in service ⓘ |
| serviceType | commuter service ⓘ |
| throughRunning |
Saitama Rapid Railway Line
ⓘ
Tokyu Meguro Line NERFINISHED ⓘ |
| trackGauge | 1,067 mm ⓘ |
| traction | electric ⓘ |
| trainProtectionSystem |
Automatic Train Control (ATC)
ⓘ
linked to:
Automatic Train Control
Automatic Train Operation (ATO) ⓘ |
| usage | daily commuter transport ⓘ |
| usedOn |
through services between Namboku Line and Saitama Rapid Railway Line
ⓘ
through services between Namboku Line and Tokyu Meguro Line ⓘ |
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 Description of subject: The Tokyo Metro 9000 series is a fleet of electric multiple unit trains operated by Tokyo Metro, primarily known for serving the Namboku Line with modern, air-conditioned commuter services.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Tokyo Metro 9000 series
linked to: Tokyo Metro 9000 series