JR East 205 series
E1028477
The JR East 205 series is a Japanese electric multiple unit commuter train type introduced in the 1980s and widely used on various urban and suburban lines in the Tokyo area.
All labels observed (2)
| Label | Occurrences |
|---|---|
| JR East 205 series canonical | 1 |
| JR East 205 series EMU | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T12977870 — 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 East 205 series Context triple: [Keiyō Line, rollingStockUsed, JR East 205 series]
-
A.
JR West 201 series EMU
The JR West 201 series EMU is a Japanese electric multiple unit train type operated by West Japan Railway Company, primarily used for commuter services in the Kansai region.
-
B.
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.
-
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 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.
-
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: JR East 205 series Target entity description: The JR East 205 series is a Japanese electric multiple unit commuter train type introduced in the 1980s and widely used on various urban and suburban lines in the Tokyo area.
-
A.
JR West 201 series EMU
The JR West 201 series EMU is a Japanese electric multiple unit train type operated by West Japan Railway Company, primarily used for commuter services in the Kansai region.
-
B.
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.
-
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 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.
-
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 (59)
| Predicate | Object |
|---|---|
| instanceOf |
Japanese train type
ⓘ
commuter train ⓘ electric multiple unit ⓘ |
| brakeType |
electro-pneumatic brake
ⓘ
regenerative brake ⓘ |
| carbodyMaterial | stainless steel ⓘ |
| carLength | 20 m ⓘ |
| carWidth | 2.8 m ⓘ |
| collectionMethod | pantograph ⓘ |
| countryOfOrigin | Japan ⓘ |
| couplingType | Shibata-type coupler ⓘ |
| designedFor | high-frequency commuter operations ⓘ |
| doorArrangement | longitudinal seating near doors ⓘ |
| doorConfiguration | 4 pairs per side ⓘ |
| doorType | sliding doors ⓘ |
| electricSystem | 1,500 V DC overhead catenary ⓘ |
| enteredService | 1985 ⓘ |
| exportedTo | Indonesia ⓘ |
| family |
JNR/JR commuter EMU series
ⓘ
linked to:
72 series EMU
|
| formation |
10-car sets
ⓘ
3-car sets ⓘ 4-car sets ⓘ 6-car sets ⓘ 8-car sets ⓘ |
| introduced | 1985 ⓘ |
| manufacturer |
Hitachi
ⓘ
JR East Ofuna Works ⓘ JR East Omiya Works ⓘ Kawasaki Heavy Industries ⓘ Kinki Sharyo ⓘ Nippon Sharyo ⓘ Tokyu Car Corporation ⓘ |
| maximumSpeed | 110 km/h ⓘ |
| operator |
East Japan Railway Company
ⓘ
Japanese National Railways ⓘ West Japan Railway Company ⓘ |
| originalOperator | Japanese National Railways ⓘ |
| powerOutput | 120 kW per motor (typical) ⓘ |
| powerType | electric ⓘ |
| regionOfOperation | Tokyo metropolitan area ⓘ |
| serviceType |
suburban commuter service
ⓘ
urban commuter service ⓘ |
| status |
partly withdrawn from Tokyo area
ⓘ
still in service on some regional lines ⓘ |
| successor |
JR East E231 series
ⓘ
linked to:
JR East E231-500 series EMU
JR East E233 series ⓘ |
| successorTo |
JNR 103 series
ⓘ
linked to:
103 series EMU
|
| trackGauge | 1,067 mm ⓘ |
| traction | resistor control ⓘ |
| usedByOperator |
KAI Commuter (Indonesia)
ⓘ
linked to:
KAI Commuter
|
| usedOnLine |
Joban Line
ⓘ
Keihin-Tohoku Line NERFINISHED ⓘ Keiyo Line NERFINISHED ⓘ Musashino Line NERFINISHED ⓘ Nambu Line NERFINISHED ⓘ Saikyo Line NERFINISHED ⓘ Tokaido Main Line (local services) ⓘ
linked to:
JR Central Tōkaidō Main Line
Yamanote Line ⓘ
linked to:
JR Yamanote Line
Yokohama 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: JR East 205 series Description of subject: The JR East 205 series is a Japanese electric multiple unit commuter train type introduced in the 1980s and widely used on various urban and suburban lines in the Tokyo area.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: JR East 205 series