Ohio class
E303915
The Ohio class is a series of U.S. Navy nuclear-powered ballistic missile submarines designed primarily for strategic nuclear deterrence.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Ohio class canonical | 3 |
| James Madison class | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2766609 — 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: Ohio class Context triple: [USS Maryland (SSBN-738), class, Ohio class]
-
A.
South Dakota class
The South Dakota class was a group of fast battleships built for the United States Navy during World War II, known for their heavy armor, powerful armament, and service in major Pacific Theater operations.
-
B.
Wyoming class
The Wyoming class was a pair of early 20th-century U.S. Navy dreadnought battleships that served through both World Wars before being retired mid-century.
-
C.
Portland class
The Portland class was a group of U.S. Navy heavy cruisers built in the early 1930s that saw extensive service during World War II.
-
D.
Colorado-class battleship
The Colorado-class battleship was a group of U.S. Navy dreadnoughts built in the early 20th century, notable for their heavy 16-inch guns and service around the World War II era.
-
E.
Florida-class battleship
The Florida-class battleship was an early 20th-century class of U.S. Navy dreadnoughts that marked a step forward in American capital ship design before World War I.
- 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: Ohio class Target entity description: The Ohio class is a series of U.S. Navy nuclear-powered ballistic missile submarines designed primarily for strategic nuclear deterrence.
-
A.
South Dakota class
The South Dakota class was a group of fast battleships built for the United States Navy during World War II, known for their heavy armor, powerful armament, and service in major Pacific Theater operations.
-
B.
Wyoming class
The Wyoming class was a pair of early 20th-century U.S. Navy dreadnought battleships that served through both World Wars before being retired mid-century.
-
C.
Portland class
The Portland class was a group of U.S. Navy heavy cruisers built in the early 1930s that saw extensive service during World War II.
-
D.
Colorado-class battleship
The Colorado-class battleship was a group of U.S. Navy dreadnoughts built in the early 20th century, notable for their heavy 16-inch guns and service around the World War II era.
-
E.
Florida-class battleship
The Florida-class battleship was an early 20th-century class of U.S. Navy dreadnoughts that marked a step forward in American capital ship design before World War I.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
ballistic missile submarine
ⓘ
nuclear-powered submarine ⓘ submarine class ⓘ |
| armamentCategory |
conventional weapons capable
ⓘ
nuclear weapons capable ⓘ |
| belongsToProgram |
United States Navy Strategic Systems Programs
ⓘ
surface form:
U.S. Navy SSBN program
|
| countryOfOrigin | United States of America ⓘ |
| crewType | Blue and Gold crews ⓘ |
| designedFor | sea-based leg of the U.S. nuclear triad ⓘ |
| designFeature |
long-endurance submerged patrol capability
ⓘ
multiple missile tubes in the hull ⓘ |
| enteredService | 1980s ⓘ |
| firstUnit | USS Ohio (SSBN-726) ⓘ |
| homeportRegion |
Atlantic Ocean
ⓘ
Pacific Ocean ⓘ |
| hullClassificationSymbol |
SSBN
ⓘ
SSGN ⓘ |
| intendedReplacementBy | Columbia-class submarine ⓘ |
| launchPlatformFor |
Trident II D5 missile
ⓘ
surface form:
UGM-133 Trident II D5
Trident I C4 ⓘ
surface form:
UGM-96 Trident I
|
| leadShipCommissionedYear | 1981 ⓘ |
| leadShipLaidDownYear | 1976 ⓘ |
| leadShipNamedAfter |
Ohio
ⓘ
surface form:
U.S. state of Ohio
|
| missileTypeCarried |
cruise missile
ⓘ
submarine-launched ballistic missile ⓘ |
| namedAfter | U.S. states ⓘ |
| NATOReportingName | Ohio class self-linksurface differs ⓘ |
| numberOfSSBNConfiguredUnits | 14 ⓘ |
| numberOfSSGNConfiguredUnits | 4 ⓘ |
| numberOfUnitsBuilt | 18 ⓘ |
| operator | United States Navy ⓘ |
| periodOfConstruction | 1970s–1990s ⓘ |
| predecessor |
Lafayette-class submarine
ⓘ
surface form:
Benjamin Franklin-class submarine
James Madison-class submarine ⓘ Lafayette-class submarine ⓘ |
| primaryRole | strategic nuclear deterrence ⓘ |
| propulsionType | nuclear propulsion ⓘ |
| reactorType | pressurized water reactor ⓘ |
| secondaryRole | conventional land-attack strike ⓘ |
| serviceBranch |
United States Submarine Force
ⓘ
surface form:
United States Navy Submarine Force
|
| SSGNConversionProgram | Trident missile tubes converted for Tomahawk cruise missiles ⓘ |
| SSGNRole |
conventional precision strike
ⓘ
special operations forces support ⓘ |
| status | in active service ⓘ |
| strategicFunction | continuous at-sea deterrent patrols ⓘ |
| strategicImportance | backbone of U.S. sea-based nuclear deterrent for decades ⓘ |
| successor | Columbia-class submarine ⓘ |
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: Ohio class Description of subject: The Ohio class is a series of U.S. Navy nuclear-powered ballistic missile submarines designed primarily for strategic nuclear deterrence.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
USS Brien McMahon (SSBN-642)
this entity surface form:
James Madison class
subject surface form:
Ohio-class SSBN
subject surface form:
Ohio-class submarine