Yamagata–Shinjō section
E912814
The Yamagata–Shinjō section is a segment of Japan’s Ōu Main Line railway connecting the city of Yamagata with Shinjō in Yamagata Prefecture.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Shinjō–Ōmagari section | 2 |
| Yamagata–Shinjō section canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T11221121 — 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: Yamagata–Shinjō section Context triple: [Ōu Main Line, hasSection, Yamagata–Shinjō section]
-
A.
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.
-
B.
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.
-
C.
Tōhoku Main Line
The Tōhoku Main Line is a major Japanese railway corridor running through the Tōhoku region, historically serving as the primary conventional rail route between Tokyo and northern Honshu.
-
D.
Utsunomiya Line
The Utsunomiya Line is a major JR East railway corridor in Japan connecting Tokyo with Utsunomiya and other cities in Tochigi Prefecture, serving as an important commuter and intercity route in the Kanto region.
-
E.
Nemuro Main Line
The Nemuro Main Line is a major railway line in Hokkaido, Japan, operated by JR Hokkaido and connecting inland cities such as Obihiro with eastern Hokkaido.
- 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: Yamagata–Shinjō section Target entity description: The Yamagata–Shinjō section is a segment of Japan’s Ōu Main Line railway connecting the city of Yamagata with Shinjō in Yamagata Prefecture.
-
A.
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.
-
B.
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.
-
C.
Tōhoku Main Line
The Tōhoku Main Line is a major Japanese railway corridor running through the Tōhoku region, historically serving as the primary conventional rail route between Tokyo and northern Honshu.
-
D.
Utsunomiya Line
The Utsunomiya Line is a major JR East railway corridor in Japan connecting Tokyo with Utsunomiya and other cities in Tochigi Prefecture, serving as an important commuter and intercity route in the Kanto region.
-
E.
Nemuro Main Line
The Nemuro Main Line is a major railway line in Hokkaido, Japan, operated by JR Hokkaido and connecting inland cities such as Obihiro with eastern Hokkaido.
- F. None of above. chosen
Statements (25)
| Predicate | Object |
|---|---|
| instanceOf |
railway infrastructure
ⓘ
railway line section ⓘ |
| connects |
Shinjō Station
NERFINISHED
ⓘ
Yamagata Station NERFINISHED ⓘ |
| country | Japan ⓘ |
| electrification | AC 20 kV overhead line ⓘ |
| hasEndPoint | Shinjō Station NERFINISHED ⓘ |
| hasRailwayType | intercity rail ⓘ |
| hasStartPoint | Yamagata Station NERFINISHED ⓘ |
| lineThrough |
Shinjō City
NERFINISHED
ⓘ
Yamagata City NERFINISHED ⓘ |
| locatedIn |
Tōhoku region
ⓘ
linked to:
Tohoku
Yamagata Prefecture NERFINISHED ⓘ |
| locatedInAdministrativeTerritorialEntity | Yamagata Prefecture NERFINISHED ⓘ |
| locatedOn |
Honshū Island
ⓘ
linked to:
Honshu
|
| operator |
East Japan Railway Company
ⓘ
JR East ⓘ
linked to:
East Japan Railway Company
|
| partOf |
JR East Ōu Main Line network
ⓘ
linked to:
JR East rail lines
Ōu Main Line ⓘ |
| railwayLine | Ōu Main Line ⓘ |
| railwaySystem |
JR East network
ⓘ
linked to:
JR East rail lines
|
| trackGauge |
1,067 mm
ⓘ
narrow gauge ⓘ |
| transportNetwork | Japanese railway network ⓘ |
| uses | conventional rail ⓘ |
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: Yamagata–Shinjō section Description of subject: The Yamagata–Shinjō section is a segment of Japan’s Ōu Main Line railway connecting the city of Yamagata with Shinjō in Yamagata Prefecture.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Yamagata–Shinjō section
subject linked to:
Ou Main Line
subject linked to:
Ou Main Line
linked to: Yamagata–Shinjō section