Mount Ōminakami
E321121
Mount Ōminakami is a mountain in Japan known primarily as the headwaters area of the Tone River, one of the country’s major river systems.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Mount Ōminakami canonical | 1 |
| Ominakami-yama | 1 |
| Ōminakami-yama | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3014370 — 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: Mount Ōminakami Context triple: [Tone River, sourceLocation, Mount Ōminakami]
-
A.
Mount Hachiman
Mount Hachiman is a scenic hill in Ōmihachiman, Shiga Prefecture, known for its historical significance, hiking trails, and panoramic views over the city and Lake Biwa.
-
B.
Mount Katsuragi
Mount Katsuragi is a mountain on the border of Nara and Osaka Prefectures in Japan, known for its scenic hiking trails and seasonal flower displays, especially azaleas.
-
C.
Mount Inari
Mount Inari is a sacred mountain in Kyoto, Japan, famed for its thousands of vermilion torii gates and as the spiritual home of the Shinto deity Inari.
-
D.
Mount Tsukuba
Mount Tsukuba is a famous double-peaked mountain in Japan known for its scenic views, religious significance, and popular hiking trails.
-
E.
Mount Tanigawa
Mount Tanigawa is a prominent peak on the border of Gunma and Niigata Prefectures in Japan, known for its rugged terrain, heavy snowfall, and popularity among climbers and hikers.
- 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: Mount Ōminakami Target entity description: Mount Ōminakami is a mountain in Japan known primarily as the headwaters area of the Tone River, one of the country’s major river systems.
-
A.
Mount Hachiman
Mount Hachiman is a scenic hill in Ōmihachiman, Shiga Prefecture, known for its historical significance, hiking trails, and panoramic views over the city and Lake Biwa.
-
B.
Mount Katsuragi
Mount Katsuragi is a mountain on the border of Nara and Osaka Prefectures in Japan, known for its scenic hiking trails and seasonal flower displays, especially azaleas.
-
C.
Mount Inari
Mount Inari is a sacred mountain in Kyoto, Japan, famed for its thousands of vermilion torii gates and as the spiritual home of the Shinto deity Inari.
-
D.
Mount Tsukuba
Mount Tsukuba is a famous double-peaked mountain in Japan known for its scenic views, religious significance, and popular hiking trails.
-
E.
Mount Tanigawa
Mount Tanigawa is a prominent peak on the border of Gunma and Niigata Prefectures in Japan, known for its rugged terrain, heavy snowfall, and popularity among climbers and hikers.
- F. None of above. chosen
Statements (27)
| Predicate | Object |
|---|---|
| instanceOf | mountain ⓘ |
| category |
Mountains of Gunma Prefecture
ⓘ
Mountains of Japan ⓘ |
| continent | Asia ⓘ |
| country | Japan ⓘ |
| countrySubdivision | Japan ⓘ |
| drainageBasin |
Tone River basin
ⓘ
linked to:
Tone River
|
| elevation |
approximately 2200 metres
ⓘ
approximately 7200 feet ⓘ |
| hasJapaneseName | 大水上山 ⓘ |
| headwatersOf | Tone River ⓘ |
| importance | significant for water resources in eastern Japan ⓘ |
| locatedIn |
Chūbu region
ⓘ
Gunma Prefecture ⓘ Honshu ⓘ Japanese archipelago ⓘ Tone River headwaters area ⓘ |
| locatedInNationalContext | one of the headwater mountains of a major Japanese river system ⓘ |
| locatedOnIsland | Honshu ⓘ |
| mountainRange |
Minakami mountain area
ⓘ
linked to:
Minakami
|
| municipality |
Minakami, Gunma
ⓘ
linked to:
Minakami
|
| near | Minakami ⓘ |
| partOf |
Japanese Alps
ⓘ
linked to:
Hida Mountains
|
| regionHydrologicalImportance | major source area of Tone River ⓘ |
| riverSystem |
Tone River system
ⓘ
linked to:
Tone River
|
| romanization |
Ōminakami-yama
ⓘ
linked to:
Mount Ōminakami
|
| romanizationVariant |
Ominakami-yama
ⓘ
linked to:
Mount Ōminakami
|
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: Mount Ōminakami Description of subject: Mount Ōminakami is a mountain in Japan known primarily as the headwaters area of the Tone River, one of the country’s major river systems.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Mount Ōminakami
linked to: Mount Ōminakami