JR East Niitsu Rolling Stock Plant
E538222
JR East Niitsu Rolling Stock Plant is a major railway rolling stock manufacturing and maintenance facility operated by East Japan Railway Company in Niigata Prefecture, Japan.
All labels observed (1)
| Label | Occurrences |
|---|---|
| JR East Niitsu Rolling Stock Plant canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T5676896 — 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 Niitsu Rolling Stock Plant Context triple: [E231 series EMU, manufacturer, JR East Niitsu Rolling Stock Plant]
-
A.
Kinki Sharyo
Kinki Sharyo is a Japanese manufacturer specializing in the design and production of railway vehicles, including metro and light rail trains used in systems worldwide.
-
B.
Odakyu Electric Railway
Odakyu Electric Railway is a major private railway company in Japan that operates commuter and limited express train services connecting central Tokyo with surrounding suburban and regional areas.
-
C.
JR Freight
JR Freight is Japan’s primary rail freight operator, formed from the breakup and privatization of the former Japanese National Railways.
-
D.
JR East Nambu Line
The JR East Nambu Line is a commuter rail line in the Tokyo–Kawasaki area of Japan that connects multiple suburban communities and facilitates daily passenger transit across the Tama region.
-
E.
JR Tōkai
JR Tōkai is a major Japanese railway company that operates the Tōkaidō Shinkansen high-speed rail line and other rail services in central Japan.
- 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 Niitsu Rolling Stock Plant Target entity description: JR East Niitsu Rolling Stock Plant is a major railway rolling stock manufacturing and maintenance facility operated by East Japan Railway Company in Niigata Prefecture, Japan.
-
A.
Kinki Sharyo
Kinki Sharyo is a Japanese manufacturer specializing in the design and production of railway vehicles, including metro and light rail trains used in systems worldwide.
-
B.
Odakyu Electric Railway
Odakyu Electric Railway is a major private railway company in Japan that operates commuter and limited express train services connecting central Tokyo with surrounding suburban and regional areas.
-
C.
JR Freight
JR Freight is Japan’s primary rail freight operator, formed from the breakup and privatization of the former Japanese National Railways.
-
D.
JR East Nambu Line
The JR East Nambu Line is a commuter rail line in the Tokyo–Kawasaki area of Japan that connects multiple suburban communities and facilitates daily passenger transit across the Tama region.
-
E.
JR Tōkai
JR Tōkai is a major Japanese railway company that operates the Tōkaidō Shinkansen high-speed rail line and other rail services in central Japan.
- F. None of above. chosen
Statements (29)
| Predicate | Object |
|---|---|
| instanceOf |
industrial facility
ⓘ
railway workshop ⓘ rolling stock plant ⓘ |
| country | Japan ⓘ |
| countryCode | JP ⓘ |
| hasAbbreviation | Niitsu Rolling Stock Plant NERFINISHED ⓘ |
| hasGeographicRegion |
Chūbu region
NERFINISHED
ⓘ
Hokuriku region NERFINISHED ⓘ |
| hasLanguageOfWorkOrName | Japanese ⓘ |
| hasParentCompany | East Japan Railway Company NERFINISHED ⓘ |
| industry |
rail transport
ⓘ
rail vehicle maintenance ⓘ rail vehicle manufacturing ⓘ |
| locatedIn |
Niigata Prefecture
NERFINISHED
ⓘ
Niitsu NERFINISHED ⓘ |
| locatedInTimeZone | Japan Standard Time ⓘ |
| locatedOnContinent | Asia ⓘ |
| notableFor |
maintenance of JR East rolling stock
ⓘ
manufacture of new EMU cars for JR East ⓘ |
| operator | East Japan Railway Company NERFINISHED ⓘ |
| ownedBy | East Japan Railway Company NERFINISHED ⓘ |
| partOf | JR East group NERFINISHED ⓘ |
| primaryFunction |
rolling stock maintenance
ⓘ
rolling stock manufacturing ⓘ rolling stock overhaul ⓘ |
| railwayCompanyServed | JR East NERFINISHED ⓘ |
| railwayNetworkServed | JR East network NERFINISHED ⓘ |
| railwayRegionServed | East Japan NERFINISHED ⓘ |
| servesOperator | East Japan Railway Company 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 Niitsu Rolling Stock Plant Description of subject: JR East Niitsu Rolling Stock Plant is a major railway rolling stock manufacturing and maintenance facility operated by East Japan Railway Company in Niigata Prefecture, Japan.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.