E131 series
E594395
The E131 series is a modern Japanese electric multiple unit train type operated by JR East for suburban and regional passenger services.
All labels observed (9)
| Label | Occurrences |
|---|---|
| E131 series EMU | 2 |
| E131 series canonical | 1 |
| E131-0 series | 1 |
| E131-500 series | 1 |
| E131-600 series | 1 |
| E131-600 series EMU | 1 |
| E131-680 series EMU | 1 |
| E131-700 series | 1 |
| E131-800 series | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6313972 — 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: E131 series Context triple: [Utsunomiya Line, rollingStockUsed, E131 series]
-
A.
E217 series
The E217 series is a Japanese electric multiple unit train type that operated primarily on JR East’s Yokosuka and Sobu Line services from the mid-1990s until its phased retirement.
-
B.
E231 series EMU
The E231 series EMU is a widely used Japanese commuter train type operated by JR East, known for its high-capacity, rapid-transit service in the Greater Tokyo area.
-
C.
E233 series EMU
The E233 series EMU is a modern Japanese commuter train type operated by JR East, known for its high capacity, reliability, and widespread use on busy urban and suburban lines around Tokyo.
-
D.
E235 series EMU
The E235 series EMU is a modern Japanese commuter train operated by JR East, notable for its advanced onboard information systems, energy-efficient design, and use on busy urban lines in the Tokyo area.
-
E.
JR West 271 series
The JR West 271 series is a Japanese limited express electric multiple unit train operated by West Japan Railway Company, primarily used for airport and intercity 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: E131 series Target entity description: The E131 series is a modern Japanese electric multiple unit train type operated by JR East for suburban and regional passenger services.
-
A.
E217 series
The E217 series is a Japanese electric multiple unit train type that operated primarily on JR East’s Yokosuka and Sobu Line services from the mid-1990s until its phased retirement.
-
B.
E231 series EMU
The E231 series EMU is a widely used Japanese commuter train type operated by JR East, known for its high-capacity, rapid-transit service in the Greater Tokyo area.
-
C.
E233 series EMU
The E233 series EMU is a modern Japanese commuter train type operated by JR East, known for its high capacity, reliability, and widespread use on busy urban and suburban lines around Tokyo.
-
D.
E235 series EMU
The E235 series EMU is a modern Japanese commuter train operated by JR East, notable for its advanced onboard information systems, energy-efficient design, and use on busy urban lines in the Tokyo area.
-
E.
JR West 271 series
The JR West 271 series is a Japanese limited express electric multiple unit train operated by West Japan Railway Company, primarily used for airport and intercity services.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
Japanese train type
ⓘ
electric multiple unit ⓘ |
| brakeType |
electro-pneumatic brakes
ⓘ
regenerative braking ⓘ |
| carBodyMaterial | stainless steel ⓘ |
| collectionMethod | pantograph ⓘ |
| country | Japan ⓘ |
| designedBy |
JR East
ⓘ
linked to:
East Japan Railway Company
|
| designedFor |
local passenger services
ⓘ
regional services ⓘ suburban services ⓘ |
| doorConfiguration |
2 pairs per side per car (regional variants)
ⓘ
3 pairs per side per car (commuter variants) ⓘ |
| electricSystem | 1,500 V DC overhead ⓘ |
| enteredServiceDecade | 2020s ⓘ |
| family | JR East E-series EMU ⓘ |
| formation |
2-car sets (some variants)
ⓘ
3-car sets (some variants) ⓘ |
| hasCab | one cab at each end of set ⓘ |
| hasSeatingType |
longitudinal seating (commuter variants)
ⓘ
mixed longitudinal and transverse seating (regional variants) ⓘ |
| hasVariant |
E131-0 series
ⓘ
linked to:
E131 series
E131-500 series ⓘ
linked to:
E131 series
E131-600 series ⓘ
linked to:
E131 series
E131-700 series ⓘ
linked to:
E131 series
E131-800 series ⓘ
linked to:
E131 series
|
| introducedInService | 2021 ⓘ |
| manufacturer |
J-TREC
ⓘ
Japan Transport Engineering Company ⓘ |
| operator |
East Japan Railway Company
ⓘ
JR East ⓘ
linked to:
East Japan Railway Company
|
| operatorColorScheme | varies by operating area ⓘ |
| operatorRegion |
Chiba Prefecture
NERFINISHED
ⓘ
Kantō region ⓘ Shizuoka Prefecture ⓘ Tohoku region ⓘ
linked to:
Tohoku
|
| owner |
JR East
ⓘ
linked to:
East Japan Railway Company
|
| powerType | electric multiple unit ⓘ |
| purpose | replacement of older EMU types on local lines ⓘ |
| safetySystem |
ATS-Ps (on applicable lines)
ⓘ
linked to:
ATS-P
ATS-SN (on applicable lines) ⓘ |
| serviceType | all-stations stopping services ⓘ |
| trackGauge |
1,067 mm
ⓘ
Cape gauge ⓘ |
| tractionType | electric ⓘ |
| usage |
commuter traffic
ⓘ
regional passenger traffic ⓘ |
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: E131 series Description of subject: The E131 series is a modern Japanese electric multiple unit train type operated by JR East for suburban and regional passenger services.
Referenced by (10)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: E131 series
linked to: E131 series
linked to: E131 series
linked to: E131 series
linked to: E131 series
linked to: E131 series
linked to: E131 series
linked to: E131 series
linked to: E131 series