Hidaka Main Line (partially discontinued)
E873452
The Hidaka Main Line is a railway line in Hokkaido, Japan, historically serving coastal communities including Shinhidaka, parts of which have been closed due to storm damage and declining ridership.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Hidaka Main Line (partially discontinued) canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10594183 — 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: Hidaka Main Line (partially discontinued) Context triple: [Shinhidaka, hasRailwayLine, Hidaka Main Line (partially discontinued)]
-
A.
Shinano Railway Line
The Shinano Railway Line is a regional rail line in Nagano Prefecture, Japan, operated by Shinano Railway and serving as a key local corridor through the area.
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B.
Sanin Main Line (partial)
The Sanin Main Line is a major railway route in western Japan that runs along the Sea of Japan coast, connecting numerous cities and rural areas across the San'in region.
-
C.
Shinetsu Main Line
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.
-
D.
Yumesaki Line
The Yumesaki Line is a railway line in Osaka, Japan, primarily serving access to the Osaka Bay area including major attractions such as Universal Studios Japan.
-
E.
Ohmi Railway Main Line
The Ohmi Railway Main Line is a regional rail line in Shiga Prefecture, Japan, operated by Ohmi Railway and serving communities including the city of Omihachiman.
- 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: Hidaka Main Line (partially discontinued) Target entity description: The Hidaka Main Line is a railway line in Hokkaido, Japan, historically serving coastal communities including Shinhidaka, parts of which have been closed due to storm damage and declining ridership.
-
A.
Shinano Railway Line
The Shinano Railway Line is a regional rail line in Nagano Prefecture, Japan, operated by Shinano Railway and serving as a key local corridor through the area.
-
B.
Sanin Main Line (partial)
The Sanin Main Line is a major railway route in western Japan that runs along the Sea of Japan coast, connecting numerous cities and rural areas across the San'in region.
-
C.
Shinetsu Main Line
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.
-
D.
Yumesaki Line
The Yumesaki Line is a railway line in Osaka, Japan, primarily serving access to the Osaka Bay area including major attractions such as Universal Studios Japan.
-
E.
Ohmi Railway Main Line
The Ohmi Railway Main Line is a regional rail line in Shiga Prefecture, Japan, operated by Ohmi Railway and serving communities including the city of Omihachiman.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
rail transport infrastructure
ⓘ
railway line ⓘ |
| closureReason |
declining ridership
ⓘ
high maintenance costs ⓘ storm damage ⓘ |
| connectedTo | Muroran Main Line at Tomakomai NERFINISHED ⓘ |
| country | Japan ⓘ |
| damageEvent | storm damage in January 2015 ⓘ |
| economicContext | declining population in served areas ⓘ |
| electrification | none ⓘ |
| formerOperator | Japanese National Railways NERFINISHED ⓘ |
| formerTerminus | Samani Station NERFINISHED ⓘ |
| hasRollingStockType | diesel multiple unit ⓘ |
| historicalRole | served fishing and agricultural communities along the Pacific coast of Hokkaido ⓘ |
| infrastructureType | non-electrified rural line ⓘ |
| lineLength | approximately 146 km ⓘ |
| locatedAlong | Pacific coast of Hokkaido ⓘ |
| locatedIn | Hokkaido NERFINISHED ⓘ |
| notableFeature | sections running close to the shoreline ⓘ |
| numberOfTracks | single track ⓘ |
| opened | 1913 ⓘ |
| openedAs | Tomakomai Line NERFINISHED ⓘ |
| operationalSection | Tomakomai–Mukawa section NERFINISHED ⓘ |
| operator | Hokkaido Railway Company NERFINISHED ⓘ |
| owner | Hokkaido Railway Company NERFINISHED ⓘ |
| planningDiscussion | conversion of closed sections to bus services ⓘ |
| railwaySystem | JR Hokkaido network NERFINISHED ⓘ |
| regionServed |
Hidaka Subprefecture
NERFINISHED
ⓘ
Iburi Subprefecture NERFINISHED ⓘ |
| renamed | Hidaka Main Line NERFINISHED ⓘ |
| renamedIn | 1924 ⓘ |
| safetyIssue | coastal erosion risk ⓘ |
| servedMunicipality |
Atsuga
NERFINISHED
ⓘ
Mukawa NERFINISHED ⓘ Samani NERFINISHED ⓘ Shinhidaka NERFINISHED ⓘ Tomakomai NERFINISHED ⓘ Urakawa NERFINISHED ⓘ |
| serves |
Shinhidaka
NERFINISHED
ⓘ
coastal communities of southern Hokkaido ⓘ |
| serviceType |
freight (historically)
ⓘ
local passenger ⓘ |
| status |
partially closed
ⓘ
partially discontinued ⓘ |
| suspendedSection | Mukawa–Samani section NERFINISHED ⓘ |
| terminus |
Samani Station
NERFINISHED
ⓘ
Tomakomai Station 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: Hidaka Main Line (partially discontinued) Description of subject: The Hidaka Main Line is a railway line in Hokkaido, Japan, historically serving coastal communities including Shinhidaka, parts of which have been closed due to storm damage and declining ridership.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Shinhidaka