Toei 12-000 series
E915508
The Toei 12-000 series is a fleet of electric multiple unit trains operated by the Tokyo Metropolitan Bureau of Transportation on the Toei Ōedo Line, known for their deep-level subway operation and distinctive modern design.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Toei 12-000 series canonical | 1 |
| Toei 12-600 series | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11286451 — 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: Toei 12-000 series Context triple: [Toei Oedo Line, hasRollingStock, Toei 12-000 series]
-
A.
Toei 6300 series EMU
The Toei 6300 series EMU is a Japanese electric multiple unit train type operated by the Tokyo Metropolitan Bureau of Transportation, primarily used on through-services connecting the Toei Mita Line with other suburban lines.
-
B.
Toei 6500 series EMU
The Toei 6500 series EMU is a modern Japanese electric multiple unit train operated by the Tokyo Metropolitan Bureau of Transportation, designed for through-services on Tokyo subway and interconnecting commuter lines.
-
C.
Keio 1000 series EMU
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.
-
D.
Tokyu 5080 series EMU
The Tokyu 5080 series EMU is a Japanese electric multiple unit train operated by Tokyu Corporation, primarily used for commuter services in the Tokyo area with through-running onto various subway and interurban lines.
-
E.
Odakyu 1000 series EMU
The Odakyu 1000 series EMU is a Japanese electric multiple unit train type operated by Odakyu Electric Railway for commuter services 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: Toei 12-000 series Target entity description: The Toei 12-000 series is a fleet of electric multiple unit trains operated by the Tokyo Metropolitan Bureau of Transportation on the Toei Ōedo Line, known for their deep-level subway operation and distinctive modern design.
-
A.
Toei 6300 series EMU
The Toei 6300 series EMU is a Japanese electric multiple unit train type operated by the Tokyo Metropolitan Bureau of Transportation, primarily used on through-services connecting the Toei Mita Line with other suburban lines.
-
B.
Toei 6500 series EMU
The Toei 6500 series EMU is a modern Japanese electric multiple unit train operated by the Tokyo Metropolitan Bureau of Transportation, designed for through-services on Tokyo subway and interconnecting commuter lines.
-
C.
Keio 1000 series EMU
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.
-
D.
Tokyu 5080 series EMU
The Tokyu 5080 series EMU is a Japanese electric multiple unit train operated by Tokyu Corporation, primarily used for commuter services in the Tokyo area with through-running onto various subway and interurban lines.
-
E.
Odakyu 1000 series EMU
The Odakyu 1000 series EMU is a Japanese electric multiple unit train type operated by Odakyu Electric Railway for commuter services in the Tokyo area.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
Japanese train type
ⓘ
electric multiple unit ⓘ |
| brakeType | regenerative braking (later batches) ⓘ |
| carBodyMaterial | stainless steel ⓘ |
| city | Tokyo ⓘ |
| country | Japan ⓘ |
| countryOfOperation | Japan NERFINISHED ⓘ |
| currentCollection | third rail contact shoe ⓘ |
| designedBy | Toei and Japanese rolling stock manufacturers ⓘ |
| designedFor |
deep-level subway operation
ⓘ
high acceleration and deceleration suitable for short station spacing ⓘ high-frequency urban service ⓘ |
| doorConfiguration | 4 pairs per side per car (typical) ⓘ |
| doorOperation | air-operated or electric sliding doors ⓘ |
| enteredServiceOnLine | Toei Ōedo Line NERFINISHED ⓘ |
| gauge | 1,435 mm standard gauge ⓘ |
| hasCab | driver’s cab at both ends of trainset ⓘ |
| hasFeature |
LED destination indicators
ⓘ
air conditioning ⓘ onboard passenger information displays ⓘ |
| hasGangways | full-width inter-car gangways ⓘ |
| hasInteriorFeature |
overhead luggage racks
ⓘ
priority seating areas ⓘ stainless steel grab poles ⓘ wheelchair spaces ⓘ |
| hasInteriorLayout | longitudinal bench seating (predominantly) ⓘ |
| line | Toei Ōedo Line NERFINISHED ⓘ |
| lineCharacteristic | deep-level loop line ⓘ |
| lineVoltage | 750 V DC ⓘ |
| network | Toei Subway network NERFINISHED ⓘ |
| networkRole | main rolling stock of Toei Ōedo Line ⓘ |
| numberOfCarsPerTrainset | 8 ⓘ |
| operatedOnLine | Toei Ōedo Line NERFINISHED ⓘ |
| operator |
Toei Subway
NERFINISHED
ⓘ
Tokyo Metropolitan Bureau of Transportation NERFINISHED ⓘ |
| owner | Tokyo Metropolitan Bureau of Transportation NERFINISHED ⓘ |
| powerCollectionMethod | third rail ⓘ |
| primaryColorScheme | modern design with magenta-related line color accents ⓘ |
| safetySystem |
automatic train control (ATC)
ⓘ
automatic train operation (ATO) ⓘ |
| serviceType |
commuter train
ⓘ
subway ⓘ |
| trackType | underground ⓘ |
| tractionType | electric ⓘ |
| usedFor | urban commuter transport ⓘ |
| usedIn | Tokyo metropolitan area NERFINISHED ⓘ |
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: Toei 12-000 series Description of subject: The Toei 12-000 series is a fleet of electric multiple unit trains operated by the Tokyo Metropolitan Bureau of Transportation on the Toei Ōedo Line, known for their deep-level subway operation and distinctive modern design.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Toei 12-600 series