Seto-Ōhashi Line
E527713
The Seto-Ōhashi Line is a railway route in Japan that connects Honshu and Shikoku across the Seto Inland Sea, forming the rail link over the Great Seto Bridge system.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Seto-Ohashi railway route | 1 |
| Seto-Ōhashi Line canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3413652 — 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: Seto-Ōhashi Line Context triple: [Seto Ohashi Bridge system, railComponent, Seto-Ōhashi Line]
-
A.
Keikyū Main Line
The Keikyū Main Line is a major private railway line in the Greater Tokyo area of Japan, operated by Keikyu Corporation and serving as a key commuter route between central Tokyo and cities in Kanagawa Prefecture.
-
B.
Yamatoji Line
The Yamatoji Line is a railway line in Japan operated by JR West that connects Osaka with Nara, serving as a key commuter and intercity route in the Kansai region.
-
C.
Yokosuka Line
The Yokosuka Line is a major JR East railway line in the Greater Tokyo area that connects central Tokyo with Yokosuka in Kanagawa Prefecture, serving both commuter and intercity traffic.
-
D.
Sennichimae Line
The Sennichimae Line is a rapid transit line in Osaka, Japan, forming part of the city’s urban subway network.
-
E.
Marunouchi Line
The Marunouchi Line is one of Tokyo’s main subway lines, forming a central loop and radial route that connects key business, shopping, and transit hubs across the city.
- 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: Seto-Ōhashi Line Target entity description: The Seto-Ōhashi Line is a railway route in Japan that connects Honshu and Shikoku across the Seto Inland Sea, forming the rail link over the Great Seto Bridge system.
-
A.
Keikyū Main Line
The Keikyū Main Line is a major private railway line in the Greater Tokyo area of Japan, operated by Keikyu Corporation and serving as a key commuter route between central Tokyo and cities in Kanagawa Prefecture.
-
B.
Yamatoji Line
The Yamatoji Line is a railway line in Japan operated by JR West that connects Osaka with Nara, serving as a key commuter and intercity route in the Kansai region.
-
C.
Yokosuka Line
The Yokosuka Line is a major JR East railway line in the Greater Tokyo area that connects central Tokyo with Yokosuka in Kanagawa Prefecture, serving both commuter and intercity traffic.
-
D.
Sennichimae Line
The Sennichimae Line is a rapid transit line in Osaka, Japan, forming part of the city’s urban subway network.
-
E.
Marunouchi Line
The Marunouchi Line is one of Tokyo’s main subway lines, forming a central loop and radial route that connects key business, shopping, and transit hubs across the city.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
railway line
ⓘ
railway route ⓘ |
| connectsCity |
Okayama
NERFINISHED
ⓘ
Takamatsu NERFINISHED ⓘ |
| connectsIsland |
Honshu
NERFINISHED
ⓘ
Shikoku NERFINISHED ⓘ |
| connectsRegion |
Honshu
NERFINISHED
ⓘ
Shikoku NERFINISHED ⓘ |
| country | Japan ⓘ |
| crosses | Seto Inland Sea NERFINISHED ⓘ |
| crossesStructure |
Hitsuishijima Bridge
NERFINISHED
ⓘ
Iwakurojima Bridge NERFINISHED ⓘ Kita Bisan-Seto Bridge NERFINISHED ⓘ Minami Bisan-Seto Bridge NERFINISHED ⓘ Shimotsui-Seto Bridge NERFINISHED ⓘ Yoshima Bridge NERFINISHED ⓘ |
| electrification | AC 20 kV 60 Hz ⓘ |
| hasFeature |
double-track
ⓘ
electrified main line ⓘ |
| hasService |
limited express trains
ⓘ
local trains ⓘ |
| languageOfName | Japanese ⓘ |
| lineColor | blue (JR West route maps) ⓘ |
| locatedOn | Seto Ohashi Bridge railway level NERFINISHED ⓘ |
| namedAfter | Seto-Ōhashi (Great Seto Bridge) NERFINISHED ⓘ |
| nativeName | 瀬戸大橋線 NERFINISHED ⓘ |
| opened | 1988 ⓘ |
| openedForService | 10 April 1988 ⓘ |
| operator |
JR Shikoku
NERFINISHED
ⓘ
JR West NERFINISHED ⓘ Shikoku Railway Company NERFINISHED ⓘ West Japan Railway Company NERFINISHED ⓘ |
| partOf | Honshi-Bisan Line NERFINISHED ⓘ |
| partOfNetwork |
JR Shikoku network
NERFINISHED
ⓘ
JR West urban network NERFINISHED ⓘ |
| passesThroughPrefecture |
Kagawa Prefecture
NERFINISHED
ⓘ
Okayama Prefecture NERFINISHED ⓘ |
| railLinkOver | Great Seto Bridge NERFINISHED ⓘ |
| region |
Chūgoku region
NERFINISHED
ⓘ
Shikoku region NERFINISHED ⓘ |
| role | main rail link between Honshu and Shikoku ⓘ |
| terminus |
Okayama Station
NERFINISHED
ⓘ
Takamatsu Station NERFINISHED ⓘ |
| trackGauge |
1067 mm
ⓘ
Cape gauge ⓘ |
| usesBridgeSystem | Great Seto Bridge NERFINISHED ⓘ |
| usesInfrastructure | Seto-Chūō Expressway railway deck 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: Seto-Ōhashi Line Description of subject: The Seto-Ōhashi Line is a railway route in Japan that connects Honshu and Shikoku across the Seto Inland Sea, forming the rail link over the Great Seto Bridge system.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Seto-Ohashi railway route