Sōya Main Line
E738107
The Sōya Main Line is a railway line in Hokkaido, Japan, operated by JR Hokkaido that runs through the northernmost regions of the island, including the city of Wakkanai.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Sōya Main Line canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T6021359 — 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: Sōya Main Line Context triple: [Wakkanai, railwayLine, Sōya Main Line]
-
A.
Sanyo Main Line
The Sanyo Main Line is a major railway corridor in western Japan connecting the Kansai and Chugoku regions along the Seto Inland Sea coast.
-
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.
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.
-
D.
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.
-
E.
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.
- 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: Sōya Main Line Target entity description: The Sōya Main Line is a railway line in Hokkaido, Japan, operated by JR Hokkaido that runs through the northernmost regions of the island, including the city of Wakkanai.
-
A.
Sanyo Main Line
The Sanyo Main Line is a major railway corridor in western Japan connecting the Kansai and Chugoku regions along the Seto Inland Sea coast.
-
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.
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.
-
D.
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.
-
E.
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.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
rail transport infrastructure
ⓘ
railway line ⓘ |
| climateZone | subarctic ⓘ |
| connectsTo | Hakodate Main Line at Asahikawa NERFINISHED ⓘ |
| country | Japan ⓘ |
| electrification | none ⓘ |
| formerOwner | Japanese National Railways NERFINISHED ⓘ |
| gauge |
1,067 mm
ⓘ
Cape gauge ⓘ |
| hasFunction |
intercity transport
ⓘ
regional transport ⓘ |
| hasTerminusCity |
Asahikawa
NERFINISHED
ⓘ
Wakkanai NERFINISHED ⓘ |
| JapaneseName | 宗谷本線 ⓘ |
| languageOfName | Japanese ⓘ |
| limitedExpressService |
Sarobetsu limited express
NERFINISHED
ⓘ
Sōya limited express ⓘ |
| locatedIn | Hokkaido NERFINISHED ⓘ |
| locatedOnIsland | Hokkaido NERFINISHED ⓘ |
| namedAfter | Sōya region NERFINISHED ⓘ |
| northernmostLineIn | Japan Railways Group network NERFINISHED ⓘ |
| northernmostTerminusIn | Japan NERFINISHED ⓘ |
| northernmostTerminusStation | Wakkanai Station NERFINISHED ⓘ |
| northernTerminus | Wakkanai Station NERFINISHED ⓘ |
| notableFeature |
one of the coldest railway lines in Japan
ⓘ
serves the northernmost city in Japan ⓘ |
| opened | early 20th century ⓘ |
| operator |
Hokkaido Railway Company
NERFINISHED
ⓘ
JR Hokkaido NERFINISHED ⓘ |
| owner | Hokkaido Railway Company NERFINISHED ⓘ |
| partOfNetwork | JR Hokkaido network ⓘ |
| passesThrough |
Asahikawa
NERFINISHED
ⓘ
Biei NERFINISHED ⓘ Horonobe NERFINISHED ⓘ Nayoro NERFINISHED ⓘ Otoineppu NERFINISHED ⓘ Toyotomi NERFINISHED ⓘ Wakkanai NERFINISHED ⓘ |
| primaryServiceType |
limited express services
ⓘ
local passenger services ⓘ |
| regionServed |
Kamikawa Subprefecture
NERFINISHED
ⓘ
Rumoi Subprefecture NERFINISHED ⓘ Sōya Subprefecture NERFINISHED ⓘ northern Hokkaido ⓘ |
| rollingStockType | diesel multiple units ⓘ |
| signallingSystem | automatic signalling ⓘ |
| southernTerminus | Asahikawa Station NERFINISHED ⓘ |
| totalLength | approximately 259 km ⓘ |
| trackConfiguration | single track ⓘ |
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: Sōya Main Line Description of subject: The Sōya Main Line is a railway line in Hokkaido, Japan, operated by JR Hokkaido that runs through the northernmost regions of the island, including the city of Wakkanai.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.