JR West 221 series
E303882
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.
All labels observed (2)
| Label | Occurrences |
|---|---|
| JR West 221 series canonical | 3 |
| JR West 221 series EMU | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2699954 — 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 221 series Context triple: [JR West Hanwa Line, hasRollingStockType, JR West 221 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 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.
-
C.
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.
-
D.
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.
-
E.
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.
- 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 221 series Target entity description: 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.
-
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 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.
-
C.
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.
-
D.
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.
-
E.
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.
- F. None of above. chosen
Statements (40)
| Predicate | Object |
|---|---|
| instanceOf |
Japanese train type
ⓘ
electric multiple unit ⓘ |
| brakeType |
electro-pneumatic brake
ⓘ
regenerative brake ⓘ |
| carBodyMaterial | steel ⓘ |
| country | Japan ⓘ |
| countryOfOperator | Japan ⓘ |
| couplingCompatibility |
JR West 223 series
ⓘ
linked to:
JR West 223 series EMU
JR West 225 series ⓘ
linked to:
JR West 225 series EMU
|
| designedFor |
commuter traffic
ⓘ
interurban traffic ⓘ suburban traffic ⓘ |
| doorConfiguration | multiple sliding doors per side ⓘ |
| electricSystem | 1,500 V DC overhead ⓘ |
| family |
JR West suburban EMU family
ⓘ
linked to:
JR West 223/225 series family
|
| gauge | 1,067 mm ⓘ |
| hasMultipleUnitControl | yes ⓘ |
| introducedBy | West Japan Railway Company ⓘ |
| manufacturer |
Kawasaki Heavy Industries
ⓘ
Kinki Sharyo ⓘ |
| operator |
JR West
ⓘ
West Japan Railway Company ⓘ |
| operatorColorScheme |
JR West urban network livery
ⓘ
linked to:
Urban Network (JR West)
|
| operatorType | passenger railway company ⓘ |
| passengerService | yes ⓘ |
| powerType | electric multiple unit ⓘ |
| railwayCompanyType | JR Group company ⓘ |
| railwayRegion | Kansai region ⓘ |
| serviceArea |
Kansai Urban Area
ⓘ
linked to:
Osaka–Kobe metropolitan area
Kobe area ⓘ Kyoto area ⓘ
linked to:
Kyoto metropolitan area
Nara area ⓘ
linked to:
Nara urban area
Osaka area ⓘ
linked to:
Osaka–Kobe metropolitan area
|
| serviceType |
interurban passenger service
ⓘ
suburban passenger service ⓘ |
| trackGauge | Cape gauge ⓘ |
| tractionType | electric ⓘ |
| usage |
local services
ⓘ
rapid services ⓘ urban network services ⓘ |
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 221 series Description of subject: 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.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: JR West 221 series