JR Sekihoku Main Line
E524019
The JR Sekihoku Main Line is a railway line in Hokkaido, Japan, operated by JR Hokkaido that connects Asahikawa and Abashiri across the island’s interior.
All labels observed (1)
| Label | Occurrences |
|---|---|
| JR Sekihoku Main Line canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2966386 — 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: JR Sekihoku Main Line Context triple: [Kitami, hasTransport, JR Sekihoku Main Line]
-
A.
Keikyū Main Line
The Keikyū Main Line is a major private railway line in the Greater Tokyo area of Japan, operated by Keikyu Corporation and serving as a key commuter route between central Tokyo and cities in Kanagawa Prefecture.
-
B.
Sanin Main Line
The Sanin Main Line is a major railway route in western Japan running along the Sea of Japan coast through the San'in region, connecting cities such as Kyoto, Tottori, and Shimonoseki.
-
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.
Kisei Main Line
The Kisei Main Line is a major railway line in Japan that runs along the Kii Peninsula, connecting cities in Osaka, Wakayama, and Mie Prefectures along the Pacific coast.
-
E.
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.
- 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: JR Sekihoku Main Line Target entity description: The JR Sekihoku Main Line is a railway line in Hokkaido, Japan, operated by JR Hokkaido that connects Asahikawa and Abashiri across the island’s interior.
-
A.
Keikyū Main Line
The Keikyū Main Line is a major private railway line in the Greater Tokyo area of Japan, operated by Keikyu Corporation and serving as a key commuter route between central Tokyo and cities in Kanagawa Prefecture.
-
B.
Sanin Main Line
The Sanin Main Line is a major railway route in western Japan running along the Sea of Japan coast through the San'in region, connecting cities such as Kyoto, Tottori, and Shimonoseki.
-
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.
Kisei Main Line
The Kisei Main Line is a major railway line in Japan that runs along the Kii Peninsula, connecting cities in Osaka, Wakayama, and Mie Prefectures along the Pacific coast.
-
E.
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.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
heavy rail
ⓘ
railway line ⓘ |
| connects |
Abashiri Station
NERFINISHED
ⓘ
Asahikawa Station NERFINISHED ⓘ |
| connectsBodyOfWater | Sea of Okhotsk coast (via Abashiri) ⓘ |
| connectsCity |
Abashiri
NERFINISHED
ⓘ
Asahikawa NERFINISHED ⓘ |
| connectsRegion |
Kamikawa region
NERFINISHED
ⓘ
Okhotsk region NERFINISHED ⓘ |
| country | Japan ⓘ |
| electrification | none ⓘ |
| formerOperator | Japanese National Railways NERFINISHED ⓘ |
| gauge | 1,067 mm ⓘ |
| hasAbbreviation | Sekihoku Line NERFINISHED ⓘ |
| hasJapaneseName | 石北本線 NERFINISHED ⓘ |
| hasOperatorAbbreviation | JR Hokkaido NERFINISHED ⓘ |
| hasPrimaryFunction |
intercity transport
ⓘ
regional transport ⓘ |
| hasService |
limited express trains
ⓘ
local trains ⓘ passenger rail ⓘ |
| historicalOperator | Japanese Government Railways NERFINISHED ⓘ |
| isPartOf | Hokkaido main lines NERFINISHED ⓘ |
| lineType | non-electrified main line ⓘ |
| locale | Japan NERFINISHED ⓘ |
| locatedIn | Hokkaido NERFINISHED ⓘ |
| locatedInPrefecture | Hokkaido Prefecture NERFINISHED ⓘ |
| locatedOnIsland | Hokkaido NERFINISHED ⓘ |
| numberOfTracks | single track ⓘ |
| opened | early 20th century ⓘ |
| operator |
Hokkaido Railway Company
NERFINISHED
ⓘ
JR Hokkaido NERFINISHED ⓘ |
| owner | Hokkaido Railway Company NERFINISHED ⓘ |
| partOfNetwork | JR Hokkaido network ⓘ |
| railwayCompany | JR Hokkaido NERFINISHED ⓘ |
| railwayType | conventional line ⓘ |
| regionServed | Hokkaido NERFINISHED ⓘ |
| servesCity |
Engaru
NERFINISHED
ⓘ
Kitami NERFINISHED ⓘ Shari (via connection at Abashiri) ⓘ |
| status | in operation ⓘ |
| terminus |
Abashiri Station
NERFINISHED
ⓘ
Asahikawa Station NERFINISHED ⓘ |
| trackGauge | Cape gauge ⓘ |
| traverses | Hokkaido interior ⓘ |
| usesRollingStockType | diesel multiple units ⓘ |
| usesSignalling |
automatic block signalling (partly)
ⓘ
special automatic signalling (partly) ⓘ |
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: JR Sekihoku Main Line Description of subject: The JR Sekihoku Main Line is a railway line in Hokkaido, Japan, operated by JR Hokkaido that connects Asahikawa and Abashiri across the island’s interior.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.