Chūō Shinkansen
E1019981
The Chūō Shinkansen is Japan’s next-generation maglev high-speed rail line planned to connect Tokyo and Nagoya (and eventually Osaka) at ultra-high speeds using superconducting magnetic levitation technology.
All labels observed (6)
| Label | Occurrences |
|---|---|
| Chuo Shinkansen | 2 |
| Chūō Shinkansen canonical | 2 |
| Chuo Shinkansen maglev line | 1 |
| Chūō Shinkansen system | 1 |
| Linear Chūō Shinkansen | 1 |
| 中央新幹線 | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T12801624 — 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: Chūō Shinkansen Context triple: [JR Tōkai, developsProject, Chūō Shinkansen]
-
A.
Tokaido Shinkansen
The Tokaido Shinkansen is Japan’s pioneering high-speed rail line connecting Tokyo with Osaka and other major cities, renowned for its speed, punctuality, and heavy passenger usage.
-
B.
Sanyo Shinkansen
Sanyo Shinkansen is a high-speed railway line in Japan that connects Osaka with western Honshu cities such as Hiroshima and Fukuoka as part of the Shinkansen network.
-
C.
Yamagata Shinkansen
The Yamagata Shinkansen is a Japanese high-speed "mini-shinkansen" rail line connecting Tokyo with Yamagata Prefecture by upgrading conventional tracks for Shinkansen through-service.
-
D.
Jōetsu Shinkansen
The Jōetsu Shinkansen is a high-speed rail line in Japan that connects Tokyo with the Niigata region, providing rapid passenger service through central Honshu.
-
E.
Hokuriku Shinkansen
The Hokuriku Shinkansen is a high-speed rail line in Japan connecting Tokyo with cities along the Sea of Japan coast, including Nagano, Toyama, and Kanazawa.
- 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: Chūō Shinkansen Target entity description: The Chūō Shinkansen is Japan’s next-generation maglev high-speed rail line planned to connect Tokyo and Nagoya (and eventually Osaka) at ultra-high speeds using superconducting magnetic levitation technology.
-
A.
Tokaido Shinkansen
The Tokaido Shinkansen is Japan’s pioneering high-speed rail line connecting Tokyo with Osaka and other major cities, renowned for its speed, punctuality, and heavy passenger usage.
-
B.
Sanyo Shinkansen
Sanyo Shinkansen is a high-speed railway line in Japan that connects Osaka with western Honshu cities such as Hiroshima and Fukuoka as part of the Shinkansen network.
-
C.
Yamagata Shinkansen
The Yamagata Shinkansen is a Japanese high-speed "mini-shinkansen" rail line connecting Tokyo with Yamagata Prefecture by upgrading conventional tracks for Shinkansen through-service.
-
D.
Jōetsu Shinkansen
The Jōetsu Shinkansen is a high-speed rail line in Japan that connects Tokyo with the Niigata region, providing rapid passenger service through central Honshu.
-
E.
Hokuriku Shinkansen
The Hokuriku Shinkansen is a high-speed rail line in Japan connecting Tokyo with cities along the Sea of Japan coast, including Nagano, Toyama, and Kanazawa.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
maglev high-speed rail line
ⓘ
planned railway line ⓘ |
| alignmentType | largely tunnel-based route ⓘ |
| alsoKnownAs |
Linear Chūō Shinkansen
ⓘ
linked to:
Chūō Shinkansen
|
| competesWith |
air travel between Tokyo and Nagoya
ⓘ
air travel between Tokyo and Osaka ⓘ |
| constructionStartDate | 2014 ⓘ |
| country | Japan ⓘ |
| electrification | magnetic levitation ⓘ |
| environmentalConcern |
energy consumption at very high speeds
ⓘ
tunneling impacts in mountain regions ⓘ |
| fundingModel | primarily financed by JR Central ⓘ |
| gauge | standard gauge ⓘ |
| languageOfName | Japanese ⓘ |
| nameInJapanese |
中央新幹線
ⓘ
linked to:
Chūō Shinkansen
|
| operator |
Central Japan Railway Company
ⓘ
JR Central ⓘ
linked to:
Central Japan Railway Company
|
| plannedEndStationPhase1 | Nagoya Station ⓘ |
| plannedExtensionEndStation | Shin-Osaka Station ⓘ |
| plannedIntermediatePrefectures |
Gifu Prefecture
NERFINISHED
ⓘ
Kanagawa Prefecture ⓘ Mie Prefecture ⓘ Nagano Prefecture ⓘ Nara Prefecture NERFINISHED ⓘ Osaka Prefecture ⓘ Yamanashi Prefecture NERFINISHED ⓘ |
| plannedLineLengthPhase1 | approximately 286 km ⓘ |
| plannedLineLengthTokyoOsaka | over 400 km ⓘ |
| plannedMaximumOperatingSpeed | 505 km/h ⓘ |
| plannedOpeningPhase1 | mid-2030s ⓘ |
| plannedOpeningPhase2 | after completion of Tokyo–Nagoya section ⓘ |
| plannedRouteRegion |
Chūbu region
ⓘ
Kansai region ⓘ Kantō region ⓘ |
| plannedServiceType | passenger-only ⓘ |
| plannedStartStation | Shinagawa Station ⓘ |
| plannedTestSpeedRecord | 603 km/h ⓘ |
| plannedTravelTimeTokyoNagoya | about 40 minutes ⓘ |
| plannedTravelTimeTokyoOsaka | about 67 minutes ⓘ |
| primaryPurpose |
high-speed intercity passenger transport
ⓘ
relief of Tōkaidō Shinkansen capacity ⓘ |
| propulsion | linear motor ⓘ |
| regulator | Ministry of Land, Infrastructure, Transport and Tourism of Japan ⓘ |
| relatedProject | Yamanashi Maglev Test Line ⓘ |
| safetyFeature |
automatic train control
ⓘ
earthquake-resistant design ⓘ |
| usesRollingStock |
L0 Series maglev
ⓘ
linked to:
L0 Series maglev trainsets
|
| usesTechnology | superconducting magnetic levitation ⓘ |
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: Chūō Shinkansen Description of subject: The Chūō Shinkansen is Japan’s next-generation maglev high-speed rail line planned to connect Tokyo and Nagoya (and eventually Osaka) at ultra-high speeds using superconducting magnetic levitation technology.
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Chūō Shinkansen
linked to: Chūō Shinkansen
linked to: Chūō Shinkansen
linked to: Chūō Shinkansen
linked to: Chūō Shinkansen
linked to: Chūō Shinkansen