JR West Kodama service
E922890
JR West Kodama service is a local Shinkansen train operation on the Sanyo Shinkansen line, making frequent stops and providing slower, all-stations high-speed rail service compared to faster limited-stop trains.
All labels observed (1)
| Label | Occurrences |
|---|---|
| JR West Kodama service canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11384670 — 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 Kodama service Context triple: [Kodama (Sanyo Shinkansen), branding, JR West Kodama service]
-
A.
JR Saikyo Line
The JR Saikyo Line is a major commuter rail line in the Tokyo metropolitan area operated by JR East, connecting central Tokyo with Saitama Prefecture and serving key hubs such as Shibuya and Shinjuku.
-
B.
JR West Hanwa Line
The JR West Hanwa Line is a major railway line in Japan’s Kansai region operated by West Japan Railway Company, connecting central Osaka with southern Osaka Prefecture and Wakayama.
-
C.
JR West Nara Line
The JR West Nara Line is a railway line in Japan operated by West Japan Railway Company that connects the Kyoto area with Nara, serving various cities and towns in between.
-
D.
JR Tōzai Line
The JR Tōzai Line is a commuter rail line in the Kansai region of Japan operated by West Japan Railway Company (JR West), connecting Kyōbashi in Osaka with Amagasaki in Hyōgo via central Osaka.
-
E.
Tozai Line
The Tozai Line is a major Tokyo Metro subway line that runs east–west across Tokyo, connecting central business districts with suburban residential areas.
- 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 Kodama service Target entity description: JR West Kodama service is a local Shinkansen train operation on the Sanyo Shinkansen line, making frequent stops and providing slower, all-stations high-speed rail service compared to faster limited-stop trains.
-
A.
JR Saikyo Line
The JR Saikyo Line is a major commuter rail line in the Tokyo metropolitan area operated by JR East, connecting central Tokyo with Saitama Prefecture and serving key hubs such as Shibuya and Shinjuku.
-
B.
JR West Hanwa Line
The JR West Hanwa Line is a major railway line in Japan’s Kansai region operated by West Japan Railway Company, connecting central Osaka with southern Osaka Prefecture and Wakayama.
-
C.
JR West Nara Line
The JR West Nara Line is a railway line in Japan operated by West Japan Railway Company that connects the Kyoto area with Nara, serving various cities and towns in between.
-
D.
JR Tōzai Line
The JR Tōzai Line is a commuter rail line in the Kansai region of Japan operated by West Japan Railway Company (JR West), connecting Kyōbashi in Osaka with Amagasaki in Hyōgo via central Osaka.
-
E.
Tozai Line
The Tozai Line is a major Tokyo Metro subway line that runs east–west across Tokyo, connecting central business districts with suburban residential areas.
- F. None of above. chosen
Statements (42)
| Predicate | Object |
|---|---|
| instanceOf |
Shinkansen train service
ⓘ
passenger rail service ⓘ |
| accessibility | barrier-free access at Shinkansen stations ⓘ |
| branding | Kodama NERFINISHED ⓘ |
| category |
JR West services
NERFINISHED
ⓘ
high-speed rail in Japan ⓘ rail transport in Japan ⓘ |
| country | Japan ⓘ |
| electrification | 25 kV AC overhead catenary ⓘ |
| fareSystem | Shinkansen surcharge required ⓘ |
| lineLengthContext | connects Shin-Osaka and Hakata on the Sanyo Shinkansen ⓘ |
| maximumSpeedClass | high-speed rail ⓘ |
| nameLanguage | Japanese ⓘ |
| nameScript | Kanji and Kana ⓘ |
| onboardServices |
air conditioning
ⓘ
overhead luggage racks ⓘ toilets ⓘ |
| operator |
JR West
ⓘ
West Japan Railway Company ⓘ |
| ownerOfInfrastructure | JR West NERFINISHED ⓘ |
| primaryFunction |
intercity passenger transport
ⓘ
regional passenger transport along Sanyo Shinkansen ⓘ |
| railNetwork | Shinkansen network ⓘ |
| railwayLineUsed | Sanyo Shinkansen NERFINISHED ⓘ |
| railwaySystem | JR Group NERFINISHED ⓘ |
| regionServed | Honshu NERFINISHED ⓘ |
| relativeSpeed |
slower than Hikari services
ⓘ
slower than Nozomi services ⓘ |
| rollingStockUsed | JR West Shinkansen electric multiple units NERFINISHED ⓘ |
| safetySystem | Automatic Train Control (ATC) on Shinkansen ⓘ |
| serviceClass | reserved and non-reserved seating (depending on train and time) ⓘ |
| serviceFrequency | multiple trains per day ⓘ |
| servicePattern | local Shinkansen ⓘ |
| serviceRole |
complements faster limited-stop Shinkansen services
ⓘ
provides local connectivity between intermediate Sanyo Shinkansen stations ⓘ |
| serviceType | all-stations service ⓘ |
| stoppingPattern |
makes frequent stops
ⓘ
stops at most or all Sanyo Shinkansen stations on its route ⓘ |
| ticketClass |
Green Car (on some formations)
ⓘ
Ordinary Class ⓘ |
| ticketing | accepts Japan Rail Pass (subject to pass conditions) ⓘ |
| trackGauge | 1,435 mm standard gauge ⓘ |
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 Kodama service Description of subject: JR West Kodama service is a local Shinkansen train operation on the Sanyo Shinkansen line, making frequent stops and providing slower, all-stations high-speed rail service compared to faster limited-stop trains.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Kodama (Sanyo Shinkansen)