Los Angeles-class submarines
E487035
Los Angeles-class submarines are a class of nuclear-powered fast attack submarines used by the United States Navy for missions including anti-submarine warfare, intelligence gathering, and strike operations.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Los Angeles-class submarines canonical | 2 |
| Los Angeles-class nuclear-powered attack submarines | 1 |
| Los Angeles-class submarine | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5004751 — 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: Los Angeles-class submarines Context triple: [Portsmouth Naval Shipyard, supportsVesselType, Los Angeles-class submarines]
-
A.
Skipjack-class nuclear submarines
The Skipjack-class nuclear submarines were a pioneering class of fast attack submarines in the U.S. Navy, notable for their teardrop hull design and enhanced underwater speed and maneuverability during the Cold War era.
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B.
Ohio-class ballistic missile submarine
The Ohio-class ballistic missile submarine is a class of U.S. Navy nuclear-powered submarines designed primarily for strategic nuclear deterrence, carrying long-range submarine-launched ballistic missiles.
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C.
Virginia-class submarine
The Virginia-class submarine is a class of nuclear-powered fast attack submarines used by the United States Navy, designed for a broad range of open-ocean and littoral missions with advanced stealth, surveillance, and strike capabilities.
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D.
Vanguard-class ballistic missile submarines
Vanguard-class ballistic missile submarines are the United Kingdom’s nuclear-powered, nuclear-armed submarines that form the seaborne leg of its strategic deterrent force.
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E.
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.
- 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: Los Angeles-class submarines Target entity description: Los Angeles-class submarines are a class of nuclear-powered fast attack submarines used by the United States Navy for missions including anti-submarine warfare, intelligence gathering, and strike operations.
-
A.
Skipjack-class nuclear submarines
The Skipjack-class nuclear submarines were a pioneering class of fast attack submarines in the U.S. Navy, notable for their teardrop hull design and enhanced underwater speed and maneuverability during the Cold War era.
-
B.
Ohio-class ballistic missile submarine
The Ohio-class ballistic missile submarine is a class of U.S. Navy nuclear-powered submarines designed primarily for strategic nuclear deterrence, carrying long-range submarine-launched ballistic missiles.
-
C.
Virginia-class submarine
The Virginia-class submarine is a class of nuclear-powered fast attack submarines used by the United States Navy, designed for a broad range of open-ocean and littoral missions with advanced stealth, surveillance, and strike capabilities.
-
D.
Vanguard-class ballistic missile submarines
Vanguard-class ballistic missile submarines are the United Kingdom’s nuclear-powered, nuclear-armed submarines that form the seaborne leg of its strategic deterrent force.
-
E.
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.
- F. None of above. chosen
Statements (55)
| Predicate | Object |
|---|---|
| instanceOf |
United States Navy submarine class
ⓘ
nuclear-powered attack submarine class ⓘ |
| allianceUser | NATO NERFINISHED ⓘ |
| armament |
21-inch torpedo tubes
ⓘ
Mk 48 torpedoes ⓘ Tomahawk cruise missiles NERFINISHED ⓘ UGM-84 Harpoon anti-ship missiles NERFINISHED ⓘ mines ⓘ |
| beam | approximately 10 meters ⓘ |
| builder |
Electric Boat
NERFINISHED
ⓘ
Newport News Shipbuilding NERFINISHED ⓘ |
| countryOfOrigin | United States of America ⓘ |
| crewComplement |
about 12 officers
ⓘ
about 130 ⓘ about 98 enlisted ⓘ |
| designer | United States Navy NERFINISHED ⓘ |
| displacementSubmerged | approximately 6900 tons ⓘ |
| feature |
bow-mounted diving planes (688i units)
ⓘ
sail-mounted diving planes (early units) ⓘ vertical launch system for Tomahawk (selected units) ⓘ |
| firstUnitCommissioningDate | 1976 ⓘ |
| firstUnitLaidDown | USS Los Angeles (SSN-688) NERFINISHED ⓘ |
| followedBy |
Seawolf-class submarine
NERFINISHED
ⓘ
Virginia-class submarine ⓘ |
| hasVariant |
Flight I Los Angeles-class submarine
NERFINISHED
ⓘ
Flight II Los Angeles-class submarine NERFINISHED ⓘ Flight III (688i) Los Angeles-class submarine NERFINISHED ⓘ |
| hullType | single-hull submarine ⓘ |
| introducedInConflict | Cold War NERFINISHED ⓘ |
| length | approximately 110 meters ⓘ |
| maximumSpeedSubmerged | over 30 knots ⓘ |
| namedAfter | city of Los Angeles, California NERFINISHED ⓘ |
| NATOReportingName | Los Angeles class NERFINISHED ⓘ |
| numberBuilt | 62 ⓘ |
| operator | United States Navy ⓘ |
| powerPlant | S6G pressurized-water nuclear reactor NERFINISHED ⓘ |
| precededBy | Sturgeon-class submarine NERFINISHED ⓘ |
| primaryRole | fast attack submarine ⓘ |
| propulsion |
nuclear reactor
ⓘ
steam turbines ⓘ |
| role |
anti-submarine warfare
ⓘ
anti-surface warfare ⓘ intelligence gathering ⓘ strike operations ⓘ |
| serviceEntry | 1976 ⓘ |
| status |
in service
ⓘ
partially retired ⓘ |
| subclassOf |
attack submarine
ⓘ
nuclear-powered submarine ⓘ |
| testDepth | over 650 feet ⓘ |
| totalUnitsCompleted | 62 ⓘ |
| totalUnitsPlanned | 62 ⓘ |
| usedInConflict |
Gulf War
ⓘ
Iraq War ⓘ War in Afghanistan (support operations) NERFINISHED ⓘ |
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: Los Angeles-class submarines Description of subject: Los Angeles-class submarines are a class of nuclear-powered fast attack submarines used by the United States Navy for missions including anti-submarine warfare, intelligence gathering, and strike operations.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Los Angeles-class submarine
this entity surface form:
Los Angeles-class nuclear-powered attack submarines