Tokyu 2020 series
E141732
The Tokyu 2020 series is a modern Japanese electric multiple unit train type operated by Tokyu Corporation on commuter lines in the Tokyo area.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Tokyu 2020 series canonical | 6 |
How this entity was disambiguated
This entity first appeared as the object of triple T1183170 — 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: Tokyu 2020 series Context triple: [Tokyo Metro Hanzomon Line, rollingStock, Tokyu 2020 series]
-
A.
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.
-
B.
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.
-
C.
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.
-
D.
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.
-
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: Tokyu 2020 series Target entity description: The Tokyu 2020 series is a modern Japanese electric multiple unit train type operated by Tokyu Corporation on commuter lines in the Tokyo area.
-
A.
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.
-
B.
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.
-
C.
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.
-
D.
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.
-
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 (33)
| Predicate | Object |
|---|---|
| instanceOf |
commuter train
ⓘ
electric multiple unit ⓘ |
| brakeType |
electronically controlled pneumatic brake
ⓘ
regenerative brake ⓘ |
| carBodyMaterial | aluminium alloy ⓘ |
| category |
Japanese commuter EMUs
ⓘ
Tokyu rolling stock ⓘ |
| country | Japan ⓘ |
| designedFor | high-capacity urban commuting ⓘ |
| designedInComplianceWith | barrier-free standards ⓘ |
| doorConfiguration | 4 pairs per side per car ⓘ |
| electrificationSystem | 1,500 V DC overhead catenary ⓘ |
| floorType | longitudinal seating with some transverse seats ⓘ |
| formationType | 10-car fixed formation ⓘ |
| hasAirConditioning | yes ⓘ |
| hasLEDDisplays | yes ⓘ |
| hasPassengerInformationSystem | yes ⓘ |
| hasPrioritySeating | yes ⓘ |
| hasWheelchairSpace | yes ⓘ |
| numberOfCarsPerSet | 10 ⓘ |
| operator | Tokyu Corporation ⓘ |
| operatorType | private railway company ⓘ |
| powerCollectionMethod | pantograph ⓘ |
| primaryUse | commuter services ⓘ |
| propulsion | electric ⓘ |
| region |
Kanto region
ⓘ
linked to:
Kantō region
|
| serviceArea | Tokyo metropolitan area ⓘ |
| serviceType |
all-stations stopping services
ⓘ
through services onto other operators’ lines ⓘ |
| trackGauge | 1,067 mm ⓘ |
| tractionType | variable frequency drive ⓘ |
| usedOn |
Tokyu Den-en-toshi Line
ⓘ
Tokyu lines in Tokyo area ⓘ |
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: Tokyu 2020 series Description of subject: The Tokyu 2020 series is a modern Japanese electric multiple unit train type operated by Tokyu Corporation on commuter lines in the Tokyo area.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.