E217 series
E578610
The E217 series is a Japanese electric multiple unit train type that operated primarily on JR East’s Yokosuka and Sobu Line services from the mid-1990s until its phased retirement.
All labels observed (1)
| Label | Occurrences |
|---|---|
| E217 series canonical | 4 |
How this entity was disambiguated
This entity first appeared as the object of triple T6199508 — 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: E217 series Context triple: [E235 series EMU, replaced, E217 series]
-
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 271 series
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.
-
E.
323 series EMU
The 323 series EMU is a modern Japanese electric multiple unit train operated by JR West, introduced to provide improved comfort, efficiency, and accessibility on urban commuter services.
- 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: E217 series Target entity description: The E217 series is a Japanese electric multiple unit train type that operated primarily on JR East’s Yokosuka and Sobu Line services from the mid-1990s until its phased retirement.
-
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 271 series
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.
-
E.
323 series EMU
The 323 series EMU is a modern Japanese electric multiple unit train operated by JR West, introduced to provide improved comfort, efficiency, and accessibility on urban commuter services.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
Japanese train type
ⓘ
electric multiple unit ⓘ |
| brakeType |
electro-pneumatic brake
ⓘ
regenerative brake ⓘ |
| carBodyMaterial | stainless steel ⓘ |
| carLength | 20 m class ⓘ |
| collectionMethod | pantograph ⓘ |
| countryOfOrigin | Japan ⓘ |
| couplingType | Shibata-type coupler ⓘ |
| depot | Kamakura Depot NERFINISHED ⓘ |
| designedFor | through operation between underground Sobu Line tunnels and surface Yokosuka Line ⓘ |
| doorConfiguration | 4 pairs per side per car (standard cars) ⓘ |
| doorControl | one-man operation capable (with driver-only operation equipment on some sets) ⓘ |
| doorType | sliding doors ⓘ |
| electricSystem | 1500 V DC overhead catenary ⓘ |
| enteredService | 1994 ⓘ |
| family | JR East E-series EMUs NERFINISHED ⓘ |
| formation |
11-car sets
ⓘ
4-car sets ⓘ |
| gauge | 1067 mm ⓘ |
| hasGreenCar | yes ⓘ |
| interiorLayout |
longitudinal seating in most cars
ⓘ
transverse seating in Green cars ⓘ |
| introduced | 1994 ⓘ |
| manufacturer |
JR East
NERFINISHED
ⓘ
Tokyu Car Corporation NERFINISHED ⓘ |
| maximumSpeed | 120 km/h ⓘ |
| numberOfDoorsPerSide | 4 ⓘ |
| operator |
East Japan Railway Company
NERFINISHED
ⓘ
JR East NERFINISHED ⓘ |
| operatorColorScheme | blue and cream Yokosuka Line livery with Sobu Line yellow band ⓘ |
| operatorRegion | Greater Tokyo Area NERFINISHED ⓘ |
| powerCollectionVoltage | 1500 V DC ⓘ |
| powerOutput | approximately 95 kW per motor ⓘ |
| primaryDepotDuringService | Kamakura Rolling Stock Center NERFINISHED ⓘ |
| railwayLineServed |
Sobu Line (Rapid)
NERFINISHED
ⓘ
Yokosuka Line NERFINISHED ⓘ |
| region | Kanto region NERFINISHED ⓘ |
| retirementBegan | 2020s ⓘ |
| safetySystem |
ATS-P
NERFINISHED
ⓘ
ATS-Ps ⓘ |
| serviceStatus | largely withdrawn from regular service ⓘ |
| serviceType |
commuter services
ⓘ
suburban services ⓘ through services between Yokosuka Line and Sobu Line (Rapid) ⓘ |
| successor | E235-1000 series NERFINISHED ⓘ |
| trackGauge | Cape gauge ⓘ |
| usedFor | Yokosuka Line–Sobu Line through services via Tokyo 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: E217 series Description of subject: The E217 series is a Japanese electric multiple unit train type that operated primarily on JR East’s Yokosuka and Sobu Line services from the mid-1990s until its phased retirement.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.