JR West 223 series EMU
E281423
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.
All labels observed (2)
| Label | Occurrences |
|---|---|
| JR West 223 series | 8 |
| JR West 223 series EMU canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T2567373 — 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 223 series EMU Context triple: [JR Kobe Line, primaryRollingStockType, JR West 223 series EMU]
-
A.
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.
-
B.
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.
-
C.
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.
-
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.
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.
- 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 223 series EMU Target entity description: 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.
-
A.
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.
-
B.
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.
-
C.
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.
-
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.
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.
- F. None of above. chosen
Statements (32)
| Predicate | Object |
|---|---|
| instanceOf |
Japanese train type
ⓘ
commuter train ⓘ electric multiple unit ⓘ suburban train ⓘ |
| brakeType | regenerative brake (typical for series) ⓘ |
| carBodyMaterial | stainless steel ⓘ |
| country | Japan ⓘ |
| couplingType | Shibata-type automatic coupler ⓘ |
| designedFor | high acceleration suburban operation ⓘ |
| doorConfiguration | 3 pairs per side per car (typical) ⓘ |
| electrificationSystem | 1,500 V DC overhead catenary ⓘ |
| family | 223 series ⓘ |
| introducedBy | JR West ⓘ |
| manufacturer |
Kawasaki Heavy Industries
ⓘ
Kinki Sharyo ⓘ |
| multipleWorking | compatible with some other JR West EMU series ⓘ |
| operator |
JR West
ⓘ
West Japan Railway Company ⓘ |
| operatorType | passenger railway ⓘ |
| owner | West Japan Railway Company ⓘ |
| powerType | electric ⓘ |
| primaryUse |
rapid services
ⓘ
suburban services ⓘ |
| regionServed | Kansai region ⓘ |
| serviceArea | urban Kansai corridors ⓘ |
| serviceFrequencyRole | high-frequency commuter operations ⓘ |
| servicePattern |
frequent-stop commuter services
ⓘ
inter-urban rapid services ⓘ |
| serviceType |
local service
ⓘ
rapid service ⓘ |
| trackGauge | 1,067 mm ⓘ |
| trainControl | ATO/ATS compatible (JR West standard systems) ⓘ |
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 223 series EMU Description of subject: 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.
Referenced by (11)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: JR West 223 series EMU
linked to: JR West 223 series EMU
linked to: JR West 223 series EMU
linked to: JR West 223 series EMU
linked to: JR West 223 series EMU
linked to: JR West 223 series EMU
linked to: JR West 223 series EMU
linked to: JR West 223 series EMU