Yankee-class submarine
E786254
The Yankee-class submarine was a series of Soviet nuclear-powered ballistic missile submarines that formed a key part of the USSR’s strategic nuclear deterrent during the Cold War.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Yankee-class submarine canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9252620 — 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: Yankee-class submarine Context triple: [Delta-class submarine, successorTo, Yankee-class submarine]
-
A.
Archer-class submarine
The Archer-class submarine is a class of modern diesel-electric attack submarines, originally built for the Swedish Navy and later upgraded and operated by the Republic of Singapore Navy for stealthy underwater operations.
-
B.
Upholder-class submarine
The Upholder-class submarine was a class of diesel-electric attack submarines built for the Royal Navy in the late 20th century, later modernized and transferred to Canada where they became the Victoria-class.
-
C.
Vanguard-class submarine
The Vanguard-class submarine is a class of British nuclear-powered ballistic missile submarines that form the seaborne leg of the United Kingdom’s strategic nuclear deterrent.
-
D.
Victor-class submarine
The Victor-class submarine was a series of Soviet nuclear-powered attack submarines developed during the Cold War for high-speed, deep-diving anti-submarine and anti-surface warfare.
-
E.
Astute-class submarine
The Astute-class submarine is a fleet of advanced nuclear-powered attack submarines built for the Royal Navy, known for their stealth, endurance, and sophisticated weapons and sensor systems.
- 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: Yankee-class submarine Target entity description: The Yankee-class submarine was a series of Soviet nuclear-powered ballistic missile submarines that formed a key part of the USSR’s strategic nuclear deterrent during the Cold War.
-
A.
Archer-class submarine
The Archer-class submarine is a class of modern diesel-electric attack submarines, originally built for the Swedish Navy and later upgraded and operated by the Republic of Singapore Navy for stealthy underwater operations.
-
B.
Upholder-class submarine
The Upholder-class submarine was a class of diesel-electric attack submarines built for the Royal Navy in the late 20th century, later modernized and transferred to Canada where they became the Victoria-class.
-
C.
Vanguard-class submarine
The Vanguard-class submarine is a class of British nuclear-powered ballistic missile submarines that form the seaborne leg of the United Kingdom’s strategic nuclear deterrent.
-
D.
Victor-class submarine
The Victor-class submarine was a series of Soviet nuclear-powered attack submarines developed during the Cold War for high-speed, deep-diving anti-submarine and anti-surface warfare.
-
E.
Astute-class submarine
The Astute-class submarine is a fleet of advanced nuclear-powered attack submarines built for the Royal Navy, known for their stealth, endurance, and sophisticated weapons and sensor systems.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
Soviet submarine class
ⓘ
ballistic missile submarine ⓘ |
| armament |
submarine-launched ballistic missile
ⓘ
torpedo ⓘ |
| builtAt | Severodvinsk NERFINISHED ⓘ |
| builtBy | Soviet shipyards ⓘ |
| category |
Cold War submarines of the Soviet Union
ⓘ
ballistic missile submarines ⓘ nuclear-powered submarines of the Soviet Navy ⓘ |
| countryOfOrigin | Soviet Union ⓘ |
| crewType | mixed conscript and professional sailors ⓘ |
| decommissioningPeriod |
1990s
ⓘ
late 1980s ⓘ |
| enteredServicePeriod | late 1960s ⓘ |
| followedBy | Delta-class submarine ⓘ |
| hasNATOReportingName | Yankee NERFINISHED ⓘ |
| hasSovietDesignation |
Navaga
NERFINISHED
ⓘ
Project 667A NERFINISHED ⓘ |
| inServiceWithSuccessorState | Russian Navy (early 1990s) NERFINISHED ⓘ |
| introducedCapability | true submerged-launch SLBM capability for USSR ⓘ |
| K-219IncidentCause | missile tube explosion ⓘ |
| K-219IncidentLocation | north of Bermuda ⓘ |
| K-219IncidentOutcome |
loss of submarine
ⓘ
radioactive release ⓘ |
| K-219IncidentYear | 1986 ⓘ |
| missileLaunchSystem | vertical launch tubes ⓘ |
| missileLocation | behind sail ⓘ |
| navalArchitecture | double-hull design ⓘ |
| notableAccident | K-219 incident NERFINISHED ⓘ |
| operatedBy | Soviet Navy NERFINISHED ⓘ |
| operationalEnvironment | open ocean patrols ⓘ |
| partOf | Soviet strategic nuclear forces NERFINISHED ⓘ |
| patrolArea |
Arctic Ocean
NERFINISHED
ⓘ
North Atlantic Ocean NERFINISHED ⓘ Pacific Ocean NERFINISHED ⓘ |
| peakServicePeriod | 1970s ⓘ |
| poweredBy | pressurized-water reactor ⓘ |
| precededBy | Hotel-class submarine NERFINISHED ⓘ |
| propulsion | nuclear reactor ⓘ |
| role | strategic missile platform ⓘ |
| strategicRole |
sea-based nuclear deterrent
ⓘ
second-strike capability ⓘ |
| submarineType | SSBN ⓘ |
| treatyInfluence |
SALT I
NERFINISHED
ⓘ
START I NERFINISHED ⓘ |
| usedDuring | Cold War ⓘ |
| usedFor | strategic nuclear deterrence ⓘ |
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: Yankee-class submarine Description of subject: The Yankee-class submarine was a series of Soviet nuclear-powered ballistic missile submarines that formed a key part of the USSR’s strategic nuclear deterrent during the Cold War.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.