S-25 Berkut
E234558
The S-25 Berkut was an early Soviet fixed surface-to-air missile system developed in the 1950s to provide high-altitude air defense for Moscow during the Cold War.
All labels observed (5)
| Label | Occurrences |
|---|---|
| S-25 Berkut canonical | 1 |
| S-25 Berkut air defense system | 1 |
| S-25 Berkut missile system | 1 |
| S-25 Berkut surface-to-air missile system | 1 |
| С-25 «Беркут» | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2109224 — 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: S-25 Berkut Context triple: [Soviet Air Defense Forces, operatedWeaponSystem, S-25 Berkut]
-
A.
Buk surface-to-air missile system
The Buk surface-to-air missile system is a Russian-made, medium-range, mobile air defense platform designed to engage aircraft, cruise missiles, and other aerial threats.
-
B.
R-12 Dvina missile
The R-12 Dvina missile was a Soviet medium-range ballistic missile central to Cold War nuclear strategy and notably deployed during the Cuban Missile Crisis.
-
C.
Katyusha rocket launcher
The Katyusha rocket launcher was a Soviet World War II-era multiple rocket artillery system famed for its devastating salvos and distinctive howling sound.
-
D.
Sukhoi Su-25
The Sukhoi Su-25 is a Soviet-era, twin-engine, subsonic close air support aircraft designed for attacking ground targets in frontline combat.
-
E.
S-75 Dvina (SA-2 Guideline) missile
The S-75 Dvina (SA-2 Guideline) is a Soviet-era, high-altitude, surface-to-air missile system widely deployed during the Cold War and known for shooting down several Western reconnaissance and combat aircraft.
- 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: S-25 Berkut Target entity description: The S-25 Berkut was an early Soviet fixed surface-to-air missile system developed in the 1950s to provide high-altitude air defense for Moscow during the Cold War.
-
A.
Buk surface-to-air missile system
The Buk surface-to-air missile system is a Russian-made, medium-range, mobile air defense platform designed to engage aircraft, cruise missiles, and other aerial threats.
-
B.
R-12 Dvina missile
The R-12 Dvina missile was a Soviet medium-range ballistic missile central to Cold War nuclear strategy and notably deployed during the Cuban Missile Crisis.
-
C.
Katyusha rocket launcher
The Katyusha rocket launcher was a Soviet World War II-era multiple rocket artillery system famed for its devastating salvos and distinctive howling sound.
-
D.
Sukhoi Su-25
The Sukhoi Su-25 is a Soviet-era, twin-engine, subsonic close air support aircraft designed for attacking ground targets in frontline combat.
-
E.
S-75 Dvina (SA-2 Guideline) missile
The S-75 Dvina (SA-2 Guideline) is a Soviet-era, high-altitude, surface-to-air missile system widely deployed during the Cold War and known for shooting down several Western reconnaissance and combat aircraft.
- F. None of above. chosen
Statements (31)
| Predicate | Object |
|---|---|
| instanceOf |
Soviet military equipment
ⓘ
fixed air defense system ⓘ surface-to-air missile system ⓘ |
| countryOfOrigin | Soviet Union ⓘ |
| deploymentArea | Moscow ⓘ |
| deploymentConfiguration | ring of missile sites around Moscow ⓘ |
| deploymentType | fixed-site system ⓘ |
| designedBy | Soviet design bureaus ⓘ |
| designedFor | defense of key political centers ⓘ |
| designedToCounter | strategic bombers ⓘ |
| developedInPeriod | 1950s ⓘ |
| engagementEnvelope | high-altitude targets ⓘ |
| guidanceType | command guidance ⓘ |
| introduced | mid-1950s ⓘ |
| missileType | two-stage surface-to-air missile ⓘ |
| namedAfter | golden eagle ⓘ |
| nativeName |
S-25 Berkut
self-linksurface differs
ⓘ
surface form:
С-25 «Беркут»
|
| operatedBy |
Soviet Air Defense Forces
ⓘ
surface form:
Soviet Air Defence Forces
|
| primaryRole |
high-altitude air defense
ⓘ
strategic air defense of Moscow ⓘ |
| propulsionType |
liquid-fuel sustainer
ⓘ
solid-fuel booster ⓘ |
| radarIntegration | ground-based fire-control radar ⓘ |
| rangeClass | medium-to-long range ⓘ |
| status | retired ⓘ |
| strategicImportance | first-generation Soviet strategic SAM network around Moscow ⓘ |
| successor |
S-75 Dvina (SA-2 Guideline) missile
ⓘ
surface form:
S-75 Dvina
|
| systemComponents |
command and control facilities
ⓘ
missile launch sites ⓘ radar stations ⓘ |
| usedDuring | Cold War ⓘ |
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: S-25 Berkut Description of subject: The S-25 Berkut was an early Soviet fixed surface-to-air missile system developed in the 1950s to provide high-altitude air defense for Moscow during the Cold War.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
С-25 «Беркут»
this entity surface form:
S-25 Berkut air defense system
this entity surface form:
S-25 Berkut surface-to-air missile system
this entity surface form:
S-25 Berkut missile system