Shinetsu Main Line
E277999
The Shinetsu Main Line is a major railway line in Japan operated by JR East that historically connected the Tokyo region with Niigata Prefecture across central Honshu.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Shinetsu Main Line canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T1426949 — 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: Shinetsu Main Line Context triple: [Nagaoka, Niigata, Japan, servedBy, Shinetsu Main Line]
-
A.
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.
-
B.
Sennichimae Line
The Sennichimae Line is a rapid transit line in Osaka, Japan, forming part of the city’s urban subway network.
-
C.
Sakaisuji Line
The Sakaisuji Line is a rapid transit line in Osaka, Japan, forming part of the Osaka Metro network and connecting key districts through north–south underground service.
-
D.
Takasaki Line
The Takasaki Line is a major railway line in Japan operated by JR East that connects the Tokyo metropolitan area with Saitama and Gunma Prefectures, serving as an important commuter and intercity route.
-
E.
Imazatosuji Line
The Imazatosuji Line is a rapid transit line in Osaka, Japan, operated by Osaka Metro and serving as one of the city’s main north–south subway corridors.
- 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: Shinetsu Main Line Target entity description: The Shinetsu Main Line is a major railway line in Japan operated by JR East that historically connected the Tokyo region with Niigata Prefecture across central Honshu.
-
A.
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.
-
B.
Sennichimae Line
The Sennichimae Line is a rapid transit line in Osaka, Japan, forming part of the city’s urban subway network.
-
C.
Sakaisuji Line
The Sakaisuji Line is a rapid transit line in Osaka, Japan, forming part of the Osaka Metro network and connecting key districts through north–south underground service.
-
D.
Takasaki Line
The Takasaki Line is a major railway line in Japan operated by JR East that connects the Tokyo metropolitan area with Saitama and Gunma Prefectures, serving as an important commuter and intercity route.
-
E.
Imazatosuji Line
The Imazatosuji Line is a rapid transit line in Osaka, Japan, operated by Osaka Metro and serving as one of the city’s main north–south subway corridors.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
rail transport infrastructure
ⓘ
railway line ⓘ |
| belongsToNetwork |
JR East rail lines
ⓘ
surface form:
JR East conventional line network
|
| closureEvent | Usui Pass section closed after Nagano Shinkansen opening ⓘ |
| connects |
Niigata Prefecture
NERFINISHED
ⓘ
Tokyo metropolitan area ⓘ
surface form:
Tokyo region
|
| connectsTo |
Banetsu West Line
NERFINISHED
ⓘ
Hakushin Line NERFINISHED ⓘ Joetsu Line NERFINISHED ⓘ Takasaki Line NERFINISHED ⓘ |
| country | Japan ⓘ |
| electrification | 1500 V DC overhead catenary ⓘ |
| electrificationStatus | fully electrified on remaining JR East sections ⓘ |
| formerOperator | Japanese National Railways ⓘ |
| formerRackSection | Usui Pass section between Yokokawa and Karuizawa ⓘ |
| historicalImportance | key trunk line linking Sea of Japan coast with Tokyo area ⓘ |
| historicalRole | main rail route between Tokyo region and Niigata ⓘ |
| historicalSection |
Nagaoka–Niigata corridor
ⓘ
Takasaki–Nagaoka corridor ⓘ |
| locale |
Chūbu region
ⓘ
surface form:
Chubu region
Gunma Prefecture NERFINISHED ⓘ Honshu ⓘ Kantō region ⓘ
surface form:
Kanto region
Nagano Prefecture NERFINISHED ⓘ Niigata Prefecture NERFINISHED ⓘ |
| notablePass | Usui Pass ⓘ |
| numberOfTracks |
double track on major sections
ⓘ
single track on some sections ⓘ |
| openingPeriod | late 19th century ⓘ |
| operator |
East Japan Railway Company
ⓘ
East Japan Railway Company ⓘ
surface form:
JR East
|
| owner |
East Japan Railway Company
ⓘ
East Japan Railway Company ⓘ
surface form:
JR East
|
| primaryUse | passenger transport ⓘ |
| reducedBy | opening of the Hokuriku Shinkansen ⓘ |
| regionCrossed | central Honshu ⓘ |
| secondaryUse | freight transport ⓘ |
| servedBy |
limited express trains
ⓘ
local trains ⓘ rapid trains ⓘ |
| status |
partly in operation
ⓘ
partly transferred to third-sector railways ⓘ |
| successorOnSomeSections |
Echigo Tokimeki Railway Myoko Haneuma Line
NERFINISHED
ⓘ
Hokuriku Shinkansen ⓘ Shinano Railway Line NERFINISHED ⓘ |
| trackGauge |
1067 mm
ⓘ
Cape gauge ⓘ |
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: Shinetsu Main Line Description of subject: The Shinetsu Main Line is a major railway line in Japan operated by JR East that historically connected the Tokyo region with Niigata Prefecture across central Honshu.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.