Ostriv Zmiinyi
E227622
Ostriv Zmiinyi is a small but strategically important Ukrainian island in the Black Sea, widely known as Snake Island.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Ostriv Zmiinyi canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1890217 — 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: Ostriv Zmiinyi Context triple: [Snake Island, hasAlternativeName, Ostriv Zmiinyi]
-
A.
Sorochyntsi
Sorochyntsi is a village in central Ukraine best known as the birthplace of writer Nikolai Gogol and for its traditional fairs and cultural heritage.
-
B.
Horlivka
Horlivka is an industrial city in eastern Ukraine’s Donetsk region, known for its coal mining and chemical industries and its location within the contested Donbas area.
-
C.
Horokhiv
Horokhiv is a small town in western Ukraine known for its location within the historic Volyn region.
-
D.
Ochakiv
Ochakiv is a port city in southern Ukraine on the Black Sea coast, historically significant as a strategic fortress and naval base controlling access to the Dnieper–Bug estuary.
-
E.
Makiyivka
Makiyivka is a major industrial city in eastern Ukraine’s Donetsk region, historically known for its coal mining and heavy industry.
- 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: Ostriv Zmiinyi Target entity description: Ostriv Zmiinyi is a small but strategically important Ukrainian island in the Black Sea, widely known as Snake Island.
-
A.
Sorochyntsi
Sorochyntsi is a village in central Ukraine best known as the birthplace of writer Nikolai Gogol and for its traditional fairs and cultural heritage.
-
B.
Horlivka
Horlivka is an industrial city in eastern Ukraine’s Donetsk region, known for its coal mining and chemical industries and its location within the contested Donbas area.
-
C.
Horokhiv
Horokhiv is a small town in western Ukraine known for its location within the historic Volyn region.
-
D.
Ochakiv
Ochakiv is a port city in southern Ukraine on the Black Sea coast, historically significant as a strategic fortress and naval base controlling access to the Dnieper–Bug estuary.
-
E.
Makiyivka
Makiyivka is a major industrial city in eastern Ukraine’s Donetsk region, historically known for its coal mining and heavy industry.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
geographical feature
ⓘ
island ⓘ strategic military location ⓘ |
| administrativeStatus |
part of Izmail Raion
ⓘ
part of Odesa Oblast ⓘ |
| alsoKnownAs |
Insula Șerpilor
ⓘ
Ostrov Zmeinyy ⓘ Snake Island ⓘ Zmiinyi Island NERFINISHED ⓘ Zmiyinyy Island NERFINISHED ⓘ |
| area | about 0.17 square kilometres ⓘ |
| coordinates | approximately 45.255°N 30.204°E ⓘ |
| country | Ukraine ⓘ |
| distanceTo |
about 35 km from the Ukrainian coast
ⓘ
about 45 km from the Romanian coast ⓘ |
| elevationAboveSeaLevel | about 41 metres ⓘ |
| hasClimate | temperate continental with maritime influence ⓘ |
| hasFloraFauna |
marine reptiles and fish in surrounding waters
ⓘ
seabird colonies ⓘ steppe vegetation ⓘ |
| hasInfrastructure |
helipad
ⓘ
lighthouse ⓘ military facilities ⓘ pier ⓘ |
| hasSettlement | Bile ⓘ |
| ICJDecisionEffect | delimited maritime boundary between Romania and Ukraine ⓘ |
| ICJJudgmentYear | 2009 ⓘ |
| locatedIn |
Odesa Oblast
ⓘ
southern Ukraine ⓘ
linked to:
Southern Ukraine
|
| locatedInBodyOfWater | Black Sea ⓘ |
| locatedInRegion | northwestern Black Sea ⓘ |
| nearTo |
Danube Delta
ⓘ
coast of Romania ⓘ coast of Ukraine ⓘ |
| partOf | Ukrainian exclusive economic zone claim ⓘ |
| strategicImportance |
controls approaches to the Danube Delta
ⓘ
important for maritime border delimitation ⓘ influences control of northwestern Black Sea shipping lanes ⓘ |
| subjectOf |
case at the International Court of Justice
ⓘ
territorial dispute between Romania and Ukraine ⓘ |
| usedFor |
border guard station
ⓘ
military outpost ⓘ navigation aid ⓘ radar surveillance ⓘ |
| wasControlledBy |
Romania
ⓘ
Soviet Union ⓘ Ukraine ⓘ |
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: Ostriv Zmiinyi Description of subject: Ostriv Zmiinyi is a small but strategically important Ukrainian island in the Black Sea, widely known as Snake Island.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.