Type 23 frigates
E398083
Type 23 frigates are a class of Royal Navy warships designed primarily for anti-submarine warfare, also used in general-purpose roles such as escort duties and maritime security operations.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Type 23 frigate | 4 |
| Type 23 frigates canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3886391 — 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: Type 23 frigates Context triple: [Portsmouth Naval Base, isHomePortOf, Type 23 frigates]
-
A.
Type 26 frigate
The Type 26 frigate is a class of advanced, multi-mission Royal Navy warships designed primarily for anti-submarine warfare and global combat operations.
-
B.
Fridtjof Nansen-class frigates
The Fridtjof Nansen-class frigates are modern Norwegian Navy warships designed primarily for anti-submarine warfare, air defense, and general-purpose maritime operations.
-
C.
Zara-class cruisers
The Zara-class cruisers were a group of Italian heavy cruisers of the Regia Marina, noted for their heavy armor and participation in key World War II Mediterranean naval battles.
-
D.
Leander class
The Leander class was a group of Royal Navy light cruisers built in the 1930s that saw extensive service during the Second World War.
-
E.
Type 45 destroyers
Type 45 destroyers are advanced British Royal Navy air-defence warships designed primarily to protect fleets from aerial and missile threats using sophisticated radar and missile 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: Type 23 frigates Target entity description: Type 23 frigates are a class of Royal Navy warships designed primarily for anti-submarine warfare, also used in general-purpose roles such as escort duties and maritime security operations.
-
A.
Type 26 frigate
The Type 26 frigate is a class of advanced, multi-mission Royal Navy warships designed primarily for anti-submarine warfare and global combat operations.
-
B.
Fridtjof Nansen-class frigates
The Fridtjof Nansen-class frigates are modern Norwegian Navy warships designed primarily for anti-submarine warfare, air defense, and general-purpose maritime operations.
-
C.
Zara-class cruisers
The Zara-class cruisers were a group of Italian heavy cruisers of the Regia Marina, noted for their heavy armor and participation in key World War II Mediterranean naval battles.
-
D.
Leander class
The Leander class was a group of Royal Navy light cruisers built in the 1930s that saw extensive service during the Second World War.
-
E.
Type 45 destroyers
Type 45 destroyers are advanced British Royal Navy air-defence warships designed primarily to protect fleets from aerial and missile threats using sophisticated radar and missile systems.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
Royal Navy warship class
ⓘ
frigate class ⓘ |
| allianceRole | NATO anti-submarine screen ⓘ |
| alsoKnownAs |
Type 26 frigate
ⓘ
surface form:
Duke-class frigate
|
| armament |
4.5-inch naval gun
ⓘ
UGM-84 Harpoon anti-ship missiles ⓘ
surface form:
Harpoon anti-ship missiles
Sea Ceptor surface-to-air missiles ⓘ close-in weapon systems ⓘ torpedo tubes ⓘ |
| builtBy |
Cammell Laird
ⓘ
Swan Hunter ⓘ Yarrow Shipbuilders ⓘ |
| countryOfOrigin | United Kingdom ⓘ |
| crewComplement | around 185 personnel ⓘ |
| designedBy |
United Kingdom Ministry of Defence
ⓘ
surface form:
UK Ministry of Defence
|
| designedFor | North Atlantic anti-submarine operations ⓘ |
| displacement | approximately 4,900 tonnes full load ⓘ |
| embarkedAircraft |
Merlin helicopters
ⓘ
surface form:
Merlin helicopter
Wildcat helicopter ⓘ |
| enteredService | late 1980s ⓘ |
| exportedTo |
Chile
ⓘ
Chilean Navy ⓘ
surface form:
Chile Navy
|
| firstOfClass | HMS Norfolk NERFINISHED ⓘ |
| helicopterFacility | flight deck and hangar ⓘ |
| maximumSpeed | about 28 knots ⓘ |
| namedAfter | British dukedoms ⓘ |
| navalArchitectureFeature |
good seakeeping in North Atlantic
ⓘ
low acoustic signature ⓘ |
| numberBuilt | 16 ⓘ |
| operator | Royal Navy ⓘ |
| primaryRole | anti-submarine warfare ⓘ |
| propulsionDetail | combined diesel-electric and gas ⓘ |
| propulsionType | CODLAG ⓘ |
| range | approximately 7,800 nautical miles at 15 knots ⓘ |
| replacedBy |
Type 26 frigate
ⓘ
Type 31 frigate ⓘ |
| secondaryRole |
escort duties
ⓘ
general-purpose warfare ⓘ maritime security operations ⓘ |
| sensor |
Artisan 3D radar
ⓘ
surface form:
Type 997 Artisan 3D radar
bow-mounted sonar ⓘ towed array sonar ⓘ |
| serviceBranch | Royal Navy ⓘ |
| status | in service with Royal Navy ⓘ |
| usedFor |
NATO operations
ⓘ
counter-piracy missions ⓘ disaster relief ⓘ humanitarian assistance ⓘ sanctions enforcement ⓘ |
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: Type 23 frigates Description of subject: Type 23 frigates are a class of Royal Navy warships designed primarily for anti-submarine warfare, also used in general-purpose roles such as escort duties and maritime security operations.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Type 23 frigate
this entity surface form:
Type 23 frigate
this entity surface form:
Type 23 frigate
subject surface form:
Sea Ceptor
this entity surface form:
Type 23 frigate