E259 series EMU
E741683
The E259 series EMU is a Japanese electric multiple unit train operated by JR East, primarily used for limited express airport services such as the Narita Express.
All labels observed (3)
| Label | Occurrences |
|---|---|
| E259 series | 3 |
| E259 series EMU canonical | 2 |
| 253 series EMU | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8529517 — 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: E259 series EMU Context triple: [Narita Express, rollingStock, E259 series EMU]
-
A.
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.
-
B.
JR West 225 series EMU
The JR West 225 series EMU is a modern Japanese electric multiple unit train designed for high-speed, high-frequency commuter and suburban services with enhanced safety and passenger comfort features.
-
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.
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.
-
E.
323 series EMU
The 323 series EMU is a modern Japanese electric multiple unit train operated by JR West, introduced to provide improved comfort, efficiency, and accessibility on urban commuter 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: E259 series EMU Target entity description: The E259 series EMU is a Japanese electric multiple unit train operated by JR East, primarily used for limited express airport services such as the Narita Express.
-
A.
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.
-
B.
JR West 225 series EMU
The JR West 225 series EMU is a modern Japanese electric multiple unit train designed for high-speed, high-frequency commuter and suburban services with enhanced safety and passenger comfort features.
-
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.
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.
-
E.
323 series EMU
The 323 series EMU is a modern Japanese electric multiple unit train operated by JR West, introduced to provide improved comfort, efficiency, and accessibility on urban commuter services.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
Japanese train type
ⓘ
electric multiple unit ⓘ |
| brakeType |
electro-pneumatic brake
ⓘ
regenerative brake ⓘ |
| carBodyMaterial | aluminium alloy ⓘ |
| collectionMethod | pantograph ⓘ |
| country | Japan ⓘ |
| designedFor |
enhanced luggage handling
ⓘ
improved ride comfort ⓘ international air travelers ⓘ |
| doorConfiguration | two pairs per side per car ⓘ |
| electricSystem | 1,500 V DC overhead catenary ⓘ |
| enteredTrialService | 2009 ⓘ |
| family |
JR East E series EMU
ⓘ
linked to:
JR East E-series EMU
|
| formation | 6-car sets ⓘ |
| fullServiceStart | 2009 ⓘ |
| hasCabType | end cars with driving cabs ⓘ |
| hasOnboardFacilities |
AC power outlets
ⓘ
green car (first-class) accommodation ⓘ luggage space ⓘ multilingual passenger information displays ⓘ ordinary-class accommodation ⓘ |
| introducedInService | 2009 ⓘ |
| livery | white, red, and black Narita Express livery ⓘ |
| manufacturer |
Kawasaki Heavy Industries
ⓘ
Tokyu Car Corporation ⓘ |
| maximumSpeed | 130 km/h ⓘ |
| numberOfCarsPerSet | 6 ⓘ |
| operator |
East Japan Railway Company
ⓘ
JR East ⓘ
linked to:
East Japan Railway Company
|
| operatorCode |
E259 series
ⓘ
linked to:
E259 series EMU
|
| operatorServiceArea | Tokyo metropolitan area ⓘ |
| owner |
JR East
ⓘ
linked to:
East Japan Railway Company
|
| powerType | electric ⓘ |
| primaryService | Narita Express ⓘ |
| replaced | 253 series EMU ⓘ |
| routeUsedOn |
Narita Line
ⓘ
Sobu Line (Rapid) ⓘ
linked to:
Sōbu Line Rapid
Tokaido Line (for some services) ⓘ
linked to:
JR Central Tōkaidō Main Line
Yokosuka Line ⓘ |
| safetySystem |
ATS-P
ⓘ
ATS-Ps ⓘ |
| serviceRole | airport access service ⓘ |
| serviceStatus | in operation ⓘ |
| serviceType | limited express ⓘ |
| trackGauge | 1,067 mm ⓘ |
| usedFor | airport access between central Tokyo and Narita Airport ⓘ |
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: E259 series EMU Description of subject: The E259 series EMU is a Japanese electric multiple unit train operated by JR East, primarily used for limited express airport services such as the Narita Express.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: E259 series EMU
linked to: E259 series EMU
linked to: E259 series EMU
linked to: E259 series EMU