Isthmus of Perekop
E10808
The Isthmus of Perekop is the narrow land bridge that links the Crimean Peninsula to the Ukrainian mainland and has long held major strategic and military importance.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Perekop Isthmus | 12 |
| Isthmus of Perekop canonical | 11 |
| Isthmus of Perekop defensive line | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T40368 — 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.
Target entity: Isthmus of Perekop Context triple: [Crimea, connectedBy, Isthmus of Perekop]
-
A.
Karelian Isthmus
The Karelian Isthmus is a strategically important land corridor between the Gulf of Finland and Lake Ladoga in northwestern Russia, historically contested between Finland and Russia and heavily fortified and fought over in the 20th century.
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B.
Sea of Azov
The Sea of Azov is a shallow inland sea in Eastern Europe connected to the Black Sea, bordered by Ukraine and Russia and known for its strategic and economic importance.
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C.
Suez Canal
The Suez Canal is a man-made waterway in Egypt that links the Mediterranean Sea to the Red Sea, serving as one of the world’s most important shipping routes between Europe and Asia.
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D.
Crimea
Crimea is a strategically important peninsula on the northern coast of the Black Sea, historically contested and known for its geopolitical significance and role in major events such as World War II diplomacy.
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E.
Sacandaga River
The Sacandaga River is a major river in upstate New York that drains the southern Adirondacks and flows into the Hudson River, historically important for logging, power generation, and recreation.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Target entity: Isthmus of Perekop Target entity description: The Isthmus of Perekop is the narrow land bridge that links the Crimean Peninsula to the Ukrainian mainland and has long held major strategic and military importance.
-
A.
Karelian Isthmus
The Karelian Isthmus is a strategically important land corridor between the Gulf of Finland and Lake Ladoga in northwestern Russia, historically contested between Finland and Russia and heavily fortified and fought over in the 20th century.
-
B.
Sea of Azov
The Sea of Azov is a shallow inland sea in Eastern Europe connected to the Black Sea, bordered by Ukraine and Russia and known for its strategic and economic importance.
-
C.
Suez Canal
The Suez Canal is a man-made waterway in Egypt that links the Mediterranean Sea to the Red Sea, serving as one of the world’s most important shipping routes between Europe and Asia.
-
D.
Crimea
Crimea is a strategically important peninsula on the northern coast of the Black Sea, historically contested and known for its geopolitical significance and role in major events such as World War II diplomacy.
-
E.
Sacandaga River
The Sacandaga River is a major river in upstate New York that drains the southern Adirondacks and flows into the Hudson River, historically important for logging, power generation, and recreation.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
isthmus
ⓘ
land bridge ⓘ |
| adjacentTo |
Perekop Bay
ⓘ
Syvash ⓘ
surface form:
Syvash lagoons
|
| borderRegionOf |
Crimea
ⓘ
Kherson Governorate ⓘ
surface form:
Kherson region
|
| connects |
Crimea
ⓘ
surface form:
Crimean Peninsula
Ukrainian mainland ⓘ |
| controlsAccessTo |
Crimea
ⓘ
surface form:
Crimean Peninsula
|
| country | Ukraine ⓘ |
| geologicalFeature | low-lying land strip ⓘ |
| hasAlternativeName |
Isthmus of Perekop
ⓘ
surface form:
Perekop Isthmus
|
| hasFortificationsSince | medieval period ⓘ |
| hasHistoricalEvent |
Battle of Perekop (1941)
ⓘ
Perekop–Chongar offensive (1920) ⓘ Siege of Perekop (1736) ⓘ Operation Barbarossa ⓘ
surface form:
World War II Eastern Front operations
|
| hasInfrastructure |
border checkpoints
ⓘ
highways ⓘ |
| hasMilitarySignificanceSince | at least early modern period ⓘ |
| hasNearbySettlement |
Armyansk
ⓘ
Perekop ⓘ |
| hasPart |
Perekop
ⓘ
Perekop Isthmus fortifications ⓘ |
| hasStrategicImportance |
military
ⓘ
transportation ⓘ |
| hasWaterBodyOnEast | Syvash ⓘ |
| hasWaterBodyOnWest | Black Sea ⓘ |
| historicallyControlledBy |
Crimean Khanate
ⓘ
Russian Empire ⓘ Soviet Union ⓘ |
| knownFor | strategic choke point ⓘ |
| languageOfToponym |
Russian
ⓘ
Ukrainian ⓘ |
| locatedIn |
Crimea
ⓘ
Kherson Governorate ⓘ
surface form:
Kherson Oblast
|
| locatedOn | northern Crimea ⓘ |
| partOf | land border between Crimea and mainland Ukraine ⓘ |
| region | Eastern Europe ⓘ |
| separates |
Black Sea
ⓘ
Syvash ⓘ |
| strategicRole |
defensive line for Crimea
ⓘ
invasion route into Crimea ⓘ |
| terrainType | steppe ⓘ |
| traversedBy |
railway lines
ⓘ
roads ⓘ |
| usedFor | land access to Crimea ⓘ |
| width | approximately 5 to 7 kilometers ⓘ |
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.
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.
Subject: Isthmus of Perekop Description of subject: The Isthmus of Perekop is the narrow land bridge that links the Crimean Peninsula to the Ukrainian mainland and has long held major strategic and military importance.
Referenced by (24)
Full triples — surface form annotated when it differs from this entity's canonical label.