Seibu 40000 series
E629646
The Seibu 40000 series is a modern Japanese electric multiple unit train operated by Seibu Railway, designed for commuter services with features such as long-distance comfort seating and improved passenger amenities.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Seibu 40000 series canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T6870426 — 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: Seibu 40000 series Context triple: [Seibu Yurakucho Line, rollingStockUsed, Seibu 40000 series]
-
A.
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.
-
B.
Tokyu 5000 series
The Tokyu 5000 series is a Japanese electric multiple unit train type operated by Tokyu Corporation, primarily used for commuter services in the Tokyo metropolitan area.
-
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 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.
-
E.
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.
- 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: Seibu 40000 series Target entity description: The Seibu 40000 series is a modern Japanese electric multiple unit train operated by Seibu Railway, designed for commuter services with features such as long-distance comfort seating and improved passenger amenities.
-
A.
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.
-
B.
Tokyu 5000 series
The Tokyu 5000 series is a Japanese electric multiple unit train type operated by Tokyu Corporation, primarily used for commuter services in the Tokyo metropolitan area.
-
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 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.
-
E.
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.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
commuter train
ⓘ
electric multiple unit ⓘ |
| amenity |
AC power outlets at seats
ⓘ
LCD passenger information displays ⓘ onboard Wi-Fi ⓘ security cameras ⓘ universal-accessible toilets in some cars ⓘ |
| brakeType | regenerative braking ⓘ |
| carBodyMaterial | aluminium alloy ⓘ |
| controlSystem | VVVF inverter control ⓘ |
| country | Japan ⓘ |
| designedBy | Seibu Railway ⓘ |
| designedFor |
S-Train reserved-seat services
ⓘ
inter-running services ⓘ long-distance commuting ⓘ |
| doorConfiguration | 4 pairs per side per car ⓘ |
| electrificationSystem | 1,500 V DC overhead catenary ⓘ |
| family | Kawasaki efACE ⓘ |
| formation |
10-car sets
ⓘ
8-car sets ⓘ |
| introducedInService | 2017 ⓘ |
| manufacturer | Kawasaki Heavy Industries ⓘ |
| operator | Seibu Railway ⓘ |
| operatorCode | 40000 series ⓘ |
| operatorHeadquarters | Tokorozawa, Saitama Prefecture ⓘ |
| operatorRegion | Tokyo metropolitan area ⓘ |
| powerType | electric ⓘ |
| purpose |
energy efficiency
ⓘ
improved passenger comfort ⓘ |
| railwayCompany | Seibu Railway ⓘ |
| region |
Kanto region
ⓘ
linked to:
Kantō region
|
| safetySystem |
ATC (on compatible lines)
ⓘ
ATS ⓘ |
| seatingFeature | long-distance comfort seating ⓘ |
| seatingFeature | transverse-style seat arrangement in some configurations ⓘ |
| seatingType |
convertible seating
ⓘ
longitudinal seating ⓘ |
| serviceBrand | S-Train ⓘ |
| serviceType |
commuter service
ⓘ
through service ⓘ |
| trackGauge | 1,067 mm ⓘ |
| UICClassification | Bo′Bo′+2′2′+Bo′Bo′+2′2′+Bo′Bo′ (typical 10-car set) ⓘ |
| usedOnLine |
Minatomirai Line
ⓘ
Seibu Ikebukuro Line ⓘ Seibu Shinjuku Line ⓘ Tokyo Metro Fukutoshin Line ⓘ Tokyo Metro Yurakucho Line ⓘ
linked to:
Tokyo Metro Yurakuchō Line
Tokyu Toyoko 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: Seibu 40000 series Description of subject: The Seibu 40000 series is a modern Japanese electric multiple unit train operated by Seibu Railway, designed for commuter services with features such as long-distance comfort seating and improved passenger amenities.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.