Fukushima–Yamagata section
E911418
The Fukushima–Yamagata section is a railway segment in northern Japan connecting Fukushima and Yamagata along the Ōu Main Line.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Fukushima–Yamagata section canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T11221120 — 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: Fukushima–Yamagata section Context triple: [Ōu Main Line, hasSection, Fukushima–Yamagata 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.
Omiya–Morioka
Omiya–Morioka is the original northern segment of Japan’s Tōhoku Shinkansen high-speed rail line, connecting the Greater Tokyo area with the Tōhoku region.
-
C.
Yamagata
Yamagata is a city in northern Japan that serves as the capital of Yamagata Prefecture, known for its hot springs, winter sports, and cherry production.
-
D.
Fukushima Prefecture
Fukushima Prefecture is a large region in northeastern Honshu, Japan, known for its agriculture, hot springs, and the site of the 2011 nuclear disaster at the Fukushima Daiichi power plant.
-
E.
Aizu region
The Aizu region is a historic area in western Fukushima Prefecture, Japan, known for its samurai heritage, traditional castle town of Aizuwakamatsu, and scenic mountainous landscapes.
- 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: Fukushima–Yamagata section Target entity description: The Fukushima–Yamagata section is a railway segment in northern Japan connecting Fukushima and Yamagata along the Ōu Main Line.
-
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.
Omiya–Morioka
Omiya–Morioka is the original northern segment of Japan’s Tōhoku Shinkansen high-speed rail line, connecting the Greater Tokyo area with the Tōhoku region.
-
C.
Yamagata
Yamagata is a city in northern Japan that serves as the capital of Yamagata Prefecture, known for its hot springs, winter sports, and cherry production.
-
D.
Fukushima Prefecture
Fukushima Prefecture is a large region in northeastern Honshu, Japan, known for its agriculture, hot springs, and the site of the 2011 nuclear disaster at the Fukushima Daiichi power plant.
-
E.
Aizu region
The Aizu region is a historic area in western Fukushima Prefecture, Japan, known for its samurai heritage, traditional castle town of Aizuwakamatsu, and scenic mountainous landscapes.
- F. None of above. chosen
Statements (31)
| Predicate | Object |
|---|---|
| instanceOf |
railway infrastructure
ⓘ
railway line section ⓘ |
| connects |
Fukushima
ⓘ
Yamagata ⓘ |
| country | Japan ⓘ |
| electrification | AC 20 kV overhead line ⓘ |
| hasEndpointCity |
Fukushima
ⓘ
Yamagata ⓘ |
| hasService |
limited express trains
ⓘ
local trains ⓘ rapid trains ⓘ |
| languageOfOfficialName | Japanese ⓘ |
| lineName | Fukushima–Yamagata section ⓘ |
| locatedIn |
Honshu
ⓘ
Japan ⓘ |
| locatedInNorthernPartOf | Japan ⓘ |
| locatedInRegion |
Tōhoku region
ⓘ
linked to:
Tohoku
|
| operatedBy |
East Japan Railway Company
ⓘ
JR East ⓘ
linked to:
East Japan Railway Company
|
| partOf | Ōu Main Line ⓘ |
| passesThroughPrefecture |
Fukushima Prefecture
NERFINISHED
ⓘ
Yamagata Prefecture NERFINISHED ⓘ |
| railwayLineType | conventional railway ⓘ |
| railwayOwner | East Japan Railway Company ⓘ |
| railwaySystem |
JR East network
ⓘ
linked to:
JR East rail lines
|
| terminusStation |
Fukushima Station
NERFINISHED
ⓘ
Yamagata Station NERFINISHED ⓘ |
| trackGauge |
1067 mm
ⓘ
Cape gauge ⓘ |
| usesRailwayLine | Ōu Main Line ⓘ |
| usesSignallingSystem | automatic block signalling ⓘ |
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: Fukushima–Yamagata section Description of subject: The Fukushima–Yamagata section is a railway segment in northern Japan connecting Fukushima and Yamagata along the Ōu Main Line.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.