Hakodate Main Line
E519736
The Hakodate Main Line is a major railway corridor in Hokkaido, Japan, connecting key cities including Hakodate and Sapporo and serving as one of the region’s primary transport routes.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Hakodate Main Line canonical | 4 |
| Hakodate Main Line Sapporo–Otaru section | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2916612 — 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: Hakodate Main Line Context triple: [Otaru, railwayLine, Hakodate Main Line]
-
A.
Hokkaido Main Line
The Hokkaido Main Line is a major railway corridor in Hokkaido, Japan, connecting key cities and serving as one of the region’s primary transportation routes.
-
B.
Kosei Line
The Kosei Line is a railway line in Japan operated by JR West that runs along the western shore of Lake Biwa, connecting Kyoto with the Shiga and Fukui prefecture areas.
-
C.
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.
-
D.
Sōbu Line
The Sōbu Line is a major Japan Railways (JR) commuter and intercity railway line in the Tokyo–Chiba area, connecting central Tokyo with eastern suburbs and cities in Chiba Prefecture.
-
E.
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.
- 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: Hakodate Main Line Target entity description: The Hakodate Main Line is a major railway corridor in Hokkaido, Japan, connecting key cities including Hakodate and Sapporo and serving as one of the region’s primary transport routes.
-
A.
Hokkaido Main Line
The Hokkaido Main Line is a major railway corridor in Hokkaido, Japan, connecting key cities and serving as one of the region’s primary transportation routes.
-
B.
Kosei Line
The Kosei Line is a railway line in Japan operated by JR West that runs along the western shore of Lake Biwa, connecting Kyoto with the Shiga and Fukui prefecture areas.
-
C.
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.
-
D.
Sōbu Line
The Sōbu Line is a major Japan Railways (JR) commuter and intercity railway line in the Tokyo–Chiba area, connecting central Tokyo with eastern suburbs and cities in Chiba Prefecture.
-
E.
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.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
railway corridor
ⓘ
railway line ⓘ |
| connectsCity |
Hakodate
NERFINISHED
ⓘ
Iwamizawa NERFINISHED ⓘ Oshamambe NERFINISHED ⓘ Otaru NERFINISHED ⓘ Sapporo NERFINISHED ⓘ |
| connectsToAirportVia | Chitose Line to New Chitose Airport ⓘ |
| connectsToFerryPort | Hakodate Port area NERFINISHED ⓘ |
| connectsWith |
Chitose Line
NERFINISHED
ⓘ
Hakodate Line branch to Otaru ⓘ Muroran Main Line NERFINISHED ⓘ Sasshō Line NERFINISHED ⓘ |
| country | Japan ⓘ |
| electrification | 20 kV AC 50 Hz overhead catenary ⓘ |
| electrifiedSection |
Otaru–Hakodate section (partially)
ⓘ
Otaru–Sapporo–Iwamizawa section NERFINISHED ⓘ |
| formerOperator | Japanese National Railways NERFINISHED ⓘ |
| gauge | 1067 mm ⓘ |
| geographicOrientation | south–north ⓘ |
| hasServiceType |
limited express trains
ⓘ
local trains ⓘ rapid trains ⓘ |
| isPartOf | JR Hokkaido network NERFINISHED ⓘ |
| locatedIn | Hokkaido NERFINISHED ⓘ |
| locatedInPrefecture | Hokkaido Prefecture NERFINISHED ⓘ |
| locatedOnIsland | Hokkaido NERFINISHED ⓘ |
| majorStation |
Hakodate Station
NERFINISHED
ⓘ
Iwamizawa Station NERFINISHED ⓘ Oshamambe Station NERFINISHED ⓘ Otaru Station NERFINISHED ⓘ Sapporo Station NERFINISHED ⓘ |
| numberOfTracks |
double track (in busy sections)
ⓘ
single track (in rural sections) ⓘ |
| openedBy | Japanese Government Railways NERFINISHED ⓘ |
| operator | Hokkaido Railway Company NERFINISHED ⓘ |
| owner | Hokkaido Railway Company NERFINISHED ⓘ |
| primaryUse | passenger transport ⓘ |
| regionServed |
Central Hokkaido
NERFINISHED
ⓘ
Southern Hokkaido NERFINISHED ⓘ |
| role |
major intercity corridor in Hokkaido
ⓘ
primary transport route between Hakodate and Sapporo ⓘ |
| secondaryUse | freight transport ⓘ |
| status | in operation ⓘ |
| terminus |
Hakodate Station
NERFINISHED
ⓘ
Sapporo Station NERFINISHED ⓘ |
| trackGauge | 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: Hakodate Main Line Description of subject: The Hakodate Main Line is a major railway corridor in Hokkaido, Japan, connecting key cities including Hakodate and Sapporo and serving as one of the region’s primary transport routes.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Ebetsu
this entity surface form:
Hakodate Main Line Sapporo–Otaru section