Ōmagari–Akita section
E915922
The Ōmagari–Akita section is a segment of railway on Japan’s Ōu Main Line that connects the city of Ōmagari with Akita in Akita Prefecture.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Ōmagari–Akita section canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11221123 — 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: Ōmagari–Akita section Context triple: [Ōu Main Line, hasSection, Ōmagari–Akita section]
-
A.
Okayama–Hakata section
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.
-
B.
Fukushima–Yamagata section
The Fukushima–Yamagata section is a railway segment in northern Japan connecting Fukushima and Yamagata along the Ōu Main Line.
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C.
Yamagata–Shinjō section
The Yamagata–Shinjō section is a segment of Japan’s Ōu Main Line railway connecting the city of Yamagata with Shinjō in Yamagata Prefecture.
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D.
Furano Line
The Furano Line is a railway line in Hokkaido, Japan, known for connecting rural towns and offering scenic views of the region’s famous flower fields and countryside.
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E.
Tenryū Hamanako Line
The Tenryū Hamanako Line is a regional railway in Shizuoka Prefecture, Japan, running along the Tenryū River and Lake Hamana and connecting inland communities with coastal 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: Ōmagari–Akita section Target entity description: The Ōmagari–Akita section is a segment of railway on Japan’s Ōu Main Line that connects the city of Ōmagari with Akita in Akita Prefecture.
-
A.
Okayama–Hakata section
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.
-
B.
Fukushima–Yamagata section
The Fukushima–Yamagata section is a railway segment in northern Japan connecting Fukushima and Yamagata along the Ōu Main Line.
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C.
Yamagata–Shinjō section
The Yamagata–Shinjō section is a segment of Japan’s Ōu Main Line railway connecting the city of Yamagata with Shinjō in Yamagata Prefecture.
-
D.
Furano Line
The Furano Line is a railway line in Hokkaido, Japan, known for connecting rural towns and offering scenic views of the region’s famous flower fields and countryside.
-
E.
Tenryū Hamanako Line
The Tenryū Hamanako Line is a regional railway in Shizuoka Prefecture, Japan, running along the Tenryū River and Lake Hamana and connecting inland communities with coastal areas.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
railway infrastructure
ⓘ
railway line section ⓘ |
| connects |
Akita
NERFINISHED
ⓘ
Ōmagari NERFINISHED ⓘ |
| connectsWithRailwayLineAtTerminus |
Ōu Main Line at Akita Station
NERFINISHED
ⓘ
Ōu Main Line at Ōmagari Station NERFINISHED ⓘ |
| country | Japan ⓘ |
| electrification | AC 20 kV overhead line ⓘ |
| hasService |
limited express trains
ⓘ
local trains ⓘ rapid trains ⓘ |
| hasTrackUsage | conventional line ⓘ |
| lineUsed | Ōu Main Line NERFINISHED ⓘ |
| locatedInAdministrativeTerritorialEntity | Akita Prefecture NERFINISHED ⓘ |
| locatedInCity |
Akita, Akita Prefecture
NERFINISHED
ⓘ
Daisen, Akita NERFINISHED ⓘ |
| locatedInRailwaySystem | JR East network GENERATED ⓘ |
| locatedInRegion | Tōhoku region NERFINISHED ⓘ |
| operator |
East Japan Railway Company
ⓘ
JR East NERFINISHED ⓘ |
| ownedBy | East Japan Railway Company NERFINISHED ⓘ |
| partOf | Ōu Main Line NERFINISHED ⓘ |
| partOfTransportNetwork | rail transport in Akita Prefecture ⓘ |
| railwayGauge |
1,067 mm
ⓘ
narrow gauge ⓘ |
| railwayLineDirection | north–south ⓘ |
| terminus |
Akita Station
NERFINISHED
ⓘ
Ōmagari Station NERFINISHED ⓘ |
| usedBy |
freight trains
ⓘ
passenger trains ⓘ |
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: Ōmagari–Akita section Description of subject: The Ōmagari–Akita section is a segment of railway on Japan’s Ōu Main Line that connects the city of Ōmagari with Akita in Akita Prefecture.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.