Onekotan Island
E668358
Onekotan Island is a remote volcanic island in Russia’s Kuril Islands chain, known for its dramatic caldera landscapes and rugged, uninhabited terrain.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Onekotan Island canonical | 6 |
How this entity was disambiguated
This entity first appeared as the object of triple T6578213 — 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: Onekotan Island Context triple: [Krenitsyn Peak, locatedIn, Onekotan Island]
-
A.
Awaji Island
Awaji Island is a large island in Japan’s Seto Inland Sea, known as the epicenter of the 1995 Great Hanshin earthquake and for its scenic landscapes and cultural heritage.
-
B.
Ninoshima Island
Ninoshima Island is a small island in Hiroshima Bay, Japan, known for its historical role during World War II and its proximity to the city of Hiroshima.
-
C.
Etajima Island
Etajima Island is a Japanese island in Hiroshima Prefecture best known as the historic site of the former Imperial Japanese Naval Academy.
-
D.
Yumeshima Island
Yumeshima Island is a large artificial island in Osaka Bay, Japan, being developed as a major waterfront district and international event site.
-
E.
Megijima Island
Megijima Island is a small island in Japan’s Seto Inland Sea known for its scenic beaches, caves linked to the Oni (ogre) legend from the folktale "Momotaro," and contemporary art installations featured in the Setouchi Triennale.
- 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: Onekotan Island Target entity description: Onekotan Island is a remote volcanic island in Russia’s Kuril Islands chain, known for its dramatic caldera landscapes and rugged, uninhabited terrain.
-
A.
Awaji Island
Awaji Island is a large island in Japan’s Seto Inland Sea, known as the epicenter of the 1995 Great Hanshin earthquake and for its scenic landscapes and cultural heritage.
-
B.
Ninoshima Island
Ninoshima Island is a small island in Hiroshima Bay, Japan, known for its historical role during World War II and its proximity to the city of Hiroshima.
-
C.
Etajima Island
Etajima Island is a Japanese island in Hiroshima Prefecture best known as the historic site of the former Imperial Japanese Naval Academy.
-
D.
Yumeshima Island
Yumeshima Island is a large artificial island in Osaka Bay, Japan, being developed as a major waterfront district and international event site.
-
E.
Megijima Island
Megijima Island is a small island in Japan’s Seto Inland Sea known for its scenic beaches, caves linked to the Oni (ogre) legend from the folktale "Momotaro," and contemporary art installations featured in the Setouchi Triennale.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
caldera lake
ⓘ
volcanic island ⓘ |
| access | only by boat or helicopter ⓘ |
| administrativeCenterDistance | remote from Yuzhno-Sakhalinsk ⓘ |
| archipelago | Kuril Islands NERFINISHED ⓘ |
| area | about 425 square kilometers ⓘ |
| climate | subarctic oceanic climate ⓘ |
| country | Russia ⓘ |
| countryClaim |
Japan
NERFINISHED
ⓘ
Russia NERFINISHED ⓘ |
| elevation | about 1324 m ⓘ |
| formerJapaneseName | Onnekotan-tō NERFINISHED ⓘ |
| geologicalSetting | subduction zone ⓘ |
| hasCaldera | Tao-Rusyr Caldera NERFINISHED ⓘ |
| hasCoastlineFeature |
black sand beaches
ⓘ
steep cliffs ⓘ |
| hasEcosystem |
coastal meadows
ⓘ
subarctic tundra vegetation ⓘ |
| hasFauna |
marine mammals
ⓘ
seabird colonies ⓘ |
| hasLake | Lake Tao-Rusyr NERFINISHED ⓘ |
| hasVolcano |
Krenitsyn Peak
NERFINISHED
ⓘ
Nemo Peak NERFINISHED ⓘ |
| highestPoint | Krenitsyn Peak NERFINISHED ⓘ |
| humanUse |
occasional military visits
ⓘ
occasional scientific expeditions ⓘ |
| length | about 42 km ⓘ |
| locatedIn |
Kuril Islands
ⓘ
Pacific Ocean ⓘ Sea of Okhotsk NERFINISHED ⓘ |
| locatedInAdministrativeTerritory |
Sakhalin Oblast
NERFINISHED
ⓘ
Severo-Kurilsky District NERFINISHED ⓘ |
| locatedOn | Onekotan Island NERFINISHED ⓘ |
| nearbyIsland |
Kharimkotan Island
NERFINISHED
ⓘ
Makanrushi Island NERFINISHED ⓘ |
| notableFeature |
dramatic caldera landscapes
ⓘ
nested caldera with central cone ⓘ |
| partOf | Greater Kuril Chain NERFINISHED ⓘ |
| population | uninhabited ⓘ |
| status | part of the Russian Far East ⓘ |
| strategicLocation | between Kamchatka Peninsula and Hokkaido ⓘ |
| terrain | rugged ⓘ |
| timezone | UTC+11 ⓘ |
| volcanicActivity | historically active ⓘ |
| volcanicArc | Kuril–Kamchatka Arc NERFINISHED ⓘ |
| width | up to about 11 km ⓘ |
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: Onekotan Island Description of subject: Onekotan Island is a remote volcanic island in Russia’s Kuril Islands chain, known for its dramatic caldera landscapes and rugged, uninhabited terrain.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.