Akita–Aomori section
E916733
The Akita–Aomori section is the northern stretch of Japan’s Ōu Main Line that connects Akita Prefecture with Aomori Prefecture in the Tōhoku region.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Akita–Aomori section canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T11221124 — 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: Akita–Aomori section Context triple: [Ōu Main Line, hasSection, Akita–Aomori section]
-
A.
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.
-
B.
Keihin-Tōhoku Line
The Keihin-Tōhoku Line is a major JR East commuter rail line in the Greater Tokyo area that runs north–south through Tokyo, connecting Saitama and Kanagawa prefectures.
-
C.
Jōetsu Line
The Jōetsu Line is a major railway line in Japan operated by JR East that connects the Kanto region with Niigata Prefecture through the mountainous interior of Honshu.
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D.
Ōmagari–Akita section
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.
-
E.
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.
- 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: Akita–Aomori section Target entity description: The Akita–Aomori section is the northern stretch of Japan’s Ōu Main Line that connects Akita Prefecture with Aomori Prefecture in the Tōhoku region.
-
A.
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.
-
B.
Keihin-Tōhoku Line
The Keihin-Tōhoku Line is a major JR East commuter rail line in the Greater Tokyo area that runs north–south through Tokyo, connecting Saitama and Kanagawa prefectures.
-
C.
Jōetsu Line
The Jōetsu Line is a major railway line in Japan operated by JR East that connects the Kanto region with Niigata Prefecture through the mountainous interior of Honshu.
-
D.
Ōmagari–Akita section
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.
-
E.
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.
- F. None of above. chosen
Statements (25)
| Predicate | Object |
|---|---|
| instanceOf | railway line section ⓘ |
| connectsLocation |
Akita Prefecture on the Ōu Main Line
ⓘ
Aomori Prefecture on the Ōu Main Line ⓘ |
| connectsWith |
Akita Prefecture
ⓘ
Aomori Prefecture NERFINISHED ⓘ |
| country | Japan ⓘ |
| electrification | electrified railway line ⓘ |
| hasPart | stations on the Ōu Main Line between Akita and Aomori ⓘ |
| hasRailwayLineNumber |
Ōu Main Line northern section
ⓘ
linked to:
Ōu Main Line
|
| lineLength | northern stretch of the Ōu Main Line ⓘ |
| locatedInAdministrativeTerritorialEntity |
Akita Prefecture
ⓘ
Aomori Prefecture NERFINISHED ⓘ |
| locatedInNorthernPartOf | Ōu Main Line ⓘ |
| locatedInRegion |
Tōhoku region
ⓘ
linked to:
Tohoku
|
| locatedInTimeZone | Japan Standard Time ⓘ |
| locatedOnTerrainFeature | Honshu ⓘ |
| operator | East Japan Railway Company ⓘ |
| owner | East Japan Railway Company ⓘ |
| partOf | Ōu Main Line ⓘ |
| railwayGauge | narrow gauge ⓘ |
| railwayLineUsed | Ōu Main Line ⓘ |
| railwaySystem | Japanese railway network ⓘ |
| transportNetwork |
JR East network
ⓘ
linked to:
JR East rail lines
|
| usedFor |
freight rail transport
ⓘ
passenger rail transport ⓘ |
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: Akita–Aomori section Description of subject: The Akita–Aomori section is the northern stretch of Japan’s Ōu Main Line that connects Akita Prefecture with Aomori Prefecture in the Tōhoku region.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
Ou Main Line