Okayama–Hakata section
E329199
The Okayama–Hakata section is the western stretch of Japan’s Sanyō Shinkansen high-speed rail line, linking Okayama with Hakata (Fukuoka) across the Chūgoku region.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Hiroshima–Hakata section | 1 |
| Okayama–Hakata section canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3091483 — 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: Okayama–Hakata section Context triple: [Sanyo Shinkansen, openedSection, Okayama–Hakata section]
-
A.
Shin-Osaka–Okayama section
The Shin-Osaka–Okayama section is the western portion of Japan’s high-speed Sanyō Shinkansen line that connects Osaka with Okayama and serves as a key corridor toward Hiroshima and Kyushu.
-
B.
Takashinohama Line
The Takashinohama Line is a short commuter railway line in Osaka Prefecture, Japan, operated by Nankai Electric Railway and serving local passenger traffic.
-
C.
Saitama Railway
Saitama Railway is a Japanese railway company operating a key commuter line that connects Saitama Prefecture with the greater Tokyo metropolitan rail network.
-
D.
Takasaki Line
The Takasaki Line is a major railway line in Japan operated by JR East that connects the Tokyo metropolitan area with Saitama and Gunma Prefectures, serving as an important commuter and intercity route.
-
E.
Sennichimae Line
The Sennichimae Line is a rapid transit line in Osaka, Japan, forming part of the city’s urban subway network.
- 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: Okayama–Hakata section Target entity description: The Okayama–Hakata section is the western stretch of Japan’s Sanyō Shinkansen high-speed rail line, linking Okayama with Hakata (Fukuoka) across the Chūgoku region.
-
A.
Shin-Osaka–Okayama section
The Shin-Osaka–Okayama section is the western portion of Japan’s high-speed Sanyō Shinkansen line that connects Osaka with Okayama and serves as a key corridor toward Hiroshima and Kyushu.
-
B.
Takashinohama Line
The Takashinohama Line is a short commuter railway line in Osaka Prefecture, Japan, operated by Nankai Electric Railway and serving local passenger traffic.
-
C.
Saitama Railway
Saitama Railway is a Japanese railway company operating a key commuter line that connects Saitama Prefecture with the greater Tokyo metropolitan rail network.
-
D.
Takasaki Line
The Takasaki Line is a major railway line in Japan operated by JR East that connects the Tokyo metropolitan area with Saitama and Gunma Prefectures, serving as an important commuter and intercity route.
-
E.
Sennichimae Line
The Sennichimae Line is a rapid transit line in Osaka, Japan, forming part of the city’s urban subway network.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
high-speed rail line section
ⓘ
railway line section ⓘ |
| connectsCity |
Fukuoka
ⓘ
Okayama NERFINISHED ⓘ |
| connectsRegion |
Kansai region
ⓘ
Kyushu ⓘ
surface form:
Kyushu region
|
| country | Japan ⓘ |
| easternTerminus | Okayama Station NERFINISHED ⓘ |
| electrification | AC 25 kV 60 Hz overhead catenary ⓘ |
| isSectionOf | Shin-Osaka–Hakata route ⓘ |
| lineType |
Shinkansen
ⓘ
high-speed rail ⓘ |
| locatedIn | Chūgoku region ⓘ |
| maximumSpeed | 300 km/h ⓘ |
| operator |
JR West
ⓘ
West Japan Railway Company ⓘ |
| partOf |
Sanyo Shinkansen
ⓘ
surface form:
Sanyō Shinkansen
Shinkansen high-speed rail network ⓘ
surface form:
Shinkansen network
|
| primaryUse | passenger transport ⓘ |
| railwayCharacter | mostly elevated and tunnel ⓘ |
| railwayGauge | standard gauge ⓘ |
| railwaySignalling | automatic train control ⓘ |
| regionServed |
Fukuoka Prefecture
ⓘ
Hiroshima Prefecture NERFINISHED ⓘ Okayama Prefecture NERFINISHED ⓘ Yamaguchi Prefecture NERFINISHED ⓘ |
| status | in operation ⓘ |
| trackConfiguration | double track ⓘ |
| usesRollingStockType |
E2 series Shinkansen
ⓘ
surface form:
Shinkansen electric multiple unit
|
| westernTerminus | Hakata Station 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: Okayama–Hakata section Description of subject: The Okayama–Hakata section is the western stretch of Japan’s Sanyō Shinkansen high-speed rail line, linking Okayama with Hakata (Fukuoka) across the Chūgoku region.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Sanyō Shinkansen
this entity surface form:
Hiroshima–Hakata section