201 series EMU
E285057
The 201 series EMU is a Japanese electric multiple unit train type introduced by Japanese National Railways in the late 1970s and used extensively on urban commuter lines such as those in the Osaka and Tokyo areas.
All labels observed (1)
| Label | Occurrences |
|---|---|
| 201 series EMU canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T2598210 — 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: 201 series EMU Context triple: [Osaka Loop Line, rollingStock, 201 series EMU]
-
A.
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.
-
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.
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.
-
D.
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.
-
E.
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.
- 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: 201 series EMU Target entity description: The 201 series EMU is a Japanese electric multiple unit train type introduced by Japanese National Railways in the late 1970s and used extensively on urban commuter lines such as those in the Osaka and Tokyo areas.
-
A.
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.
-
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.
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.
-
D.
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.
-
E.
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.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
Japanese train type
ⓘ
electric multiple unit ⓘ |
| brakeType | regenerative braking ⓘ |
| carBodyMaterial | steel ⓘ |
| controlMethod | chopper control ⓘ |
| countryOfOrigin | Japan ⓘ |
| designedBy | Japanese National Railways ⓘ |
| designedFor | high‑frequency commuter operation ⓘ |
| doorConfiguration | 3 doors per side per car (typical) ⓘ |
| electricSystem | 1,500 V DC overhead ⓘ |
| enteredService | 1979 ⓘ |
| gauge | 1067 mm ⓘ |
| hasFormation |
10‑car sets
ⓘ
4‑car sets ⓘ 6‑car sets ⓘ 8‑car sets ⓘ |
| introduced | late 1970s ⓘ |
| manufacturer |
Hitachi
ⓘ
Kawasaki Heavy Industries ⓘ Kinki Sharyo ⓘ Nippon Sharyo ⓘ |
| notableFeature | first mass‑produced Japanese EMU with chopper control ⓘ |
| operator |
Central Japan Railway Company
ⓘ
surface form:
JR Central
East Japan Railway Company ⓘ
surface form:
JR East
JR West ⓘ Japanese National Railways ⓘ |
| powerCollectionMethod | overhead catenary ⓘ |
| precededBy |
101 series EMU
ⓘ
103 series EMU ⓘ |
| serviceRegion |
Kansai region
ⓘ
Kantō region ⓘ |
| serviceType | commuter train ⓘ |
| status | partially withdrawn from regular service ⓘ |
| successor |
205 series EMU
ⓘ
321 series EMU ⓘ E231 series EMU ⓘ |
| trackGauge | narrow gauge ⓘ |
| tractionType | electric ⓘ |
| trainType | suburban commuter EMU ⓘ |
| UICClassification | Bo′Bo′ (motor cars) ⓘ |
| usedBy | Japan Railways Group ⓘ |
| usedFor | urban commuter services ⓘ |
| usedOn |
Chūō Line (Rapid)
NERFINISHED
ⓘ
Kansai Main Line ⓘ Osaka Loop Line ⓘ Osaka area commuter lines ⓘ Sakurajima Line NERFINISHED ⓘ Tokyo area commuter lines ⓘ Yamatoji Line NERFINISHED ⓘ |
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: 201 series EMU Description of subject: The 201 series EMU is a Japanese electric multiple unit train type introduced by Japanese National Railways in the late 1970s and used extensively on urban commuter lines such as those in the Osaka and Tokyo areas.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.