JR West 271 series
E305424
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.
All labels observed (3)
| Label | Occurrences |
|---|---|
| JR West 271 series canonical | 1 |
| JR West 271 series EMU | 1 |
| JR West limited express EMUs | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2699955 — 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: JR West 271 series Context triple: [JR West Hanwa Line, hasRollingStockType, JR West 271 series]
-
A.
JR West 207 series
The JR West 207 series is a Japanese electric multiple unit commuter train operated by West Japan Railway Company on urban and suburban lines in the Kansai region.
-
B.
JR West 221 series
The JR West 221 series is a Japanese electric multiple unit train type operated by West Japan Railway Company for suburban and interurban passenger services.
-
C.
JR West 321 series EMU
The JR West 321 series EMU is a Japanese commuter electric multiple unit train operated by West Japan Railway Company, primarily used for high-frequency urban and suburban services in the Kansai region.
-
D.
JR West 223 series EMU
The JR West 223 series EMU is a Japanese electric multiple unit train used for high-frequency suburban and rapid services in the Kansai region.
-
E.
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.
- 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: JR West 271 series Target entity description: 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.
-
A.
JR West 207 series
The JR West 207 series is a Japanese electric multiple unit commuter train operated by West Japan Railway Company on urban and suburban lines in the Kansai region.
-
B.
JR West 221 series
The JR West 221 series is a Japanese electric multiple unit train type operated by West Japan Railway Company for suburban and interurban passenger services.
-
C.
JR West 321 series EMU
The JR West 321 series EMU is a Japanese commuter electric multiple unit train operated by West Japan Railway Company, primarily used for high-frequency urban and suburban services in the Kansai region.
-
D.
JR West 223 series EMU
The JR West 223 series EMU is a Japanese electric multiple unit train used for high-frequency suburban and rapid services in the Kansai region.
-
E.
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.
- F. None of above. chosen
Statements (41)
| Predicate | Object |
|---|---|
| instanceOf |
electric multiple unit
ⓘ
limited express train ⓘ |
| brakeType |
electro-pneumatic brakes
ⓘ
regenerative braking ⓘ |
| category |
JR West rolling stock
ⓘ
Japanese EMU train type ⓘ |
| country | Japan ⓘ |
| countryOperatedIn | Japan ⓘ |
| designedFor | Kansai International Airport access ⓘ |
| designedForOperator | JR West ⓘ |
| designedUse |
airport access services
ⓘ
medium-distance services ⓘ |
| electricSystem | 1,500 V DC overhead ⓘ |
| electrification | overhead catenary ⓘ |
| formation | 3-car sets ⓘ |
| gauge | 1,067 mm ⓘ |
| introducedBy | West Japan Railway Company ⓘ |
| operator | West Japan Railway Company ⓘ |
| operatorAbbreviation | JR West ⓘ |
| operatorColor | JR West corporate livery ⓘ |
| owner | West Japan Railway Company ⓘ |
| passengerService | yes ⓘ |
| powerCollectionMethod | pantograph ⓘ |
| primaryUse |
airport services
ⓘ
intercity services ⓘ |
| propulsion | electric ⓘ |
| railwayCompanyType | passenger railway ⓘ |
| railwayNetwork |
JR West railway lines
ⓘ
surface form:
JR West network
|
| regionServed | Kansai region ⓘ |
| rollingStockFamily |
JR West 271 series
self-linksurface differs
ⓘ
surface form:
JR West limited express EMUs
|
| safetySystem |
ATS-P
ⓘ
surface form:
ATS
train protection system ⓘ |
| serviceArea | western Japan ⓘ |
| serviceEntry | 2019 ⓘ |
| serviceRole |
airport access train
ⓘ
intercity limited express ⓘ |
| serviceStatus | in service ⓘ |
| serviceType | limited express ⓘ |
| trackGauge | Cape gauge ⓘ |
| trainType | airport limited express ⓘ |
| UICClassification | EMU ⓘ |
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: JR West 271 series Description of subject: 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.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
JR West 271 series EMU
this entity surface form:
JR West limited express EMUs