River-class offshore patrol vessel
E809156
The River-class offshore patrol vessel is a class of small Royal Navy warships designed primarily for fisheries protection, maritime security, and general patrol duties in UK and overseas waters.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Batch 2 River-class offshore patrol vessel | 1 |
| River-class offshore patrol vessel canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9594371 — 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: River-class offshore patrol vessel Context triple: [BAE Systems Naval Ships, product, River-class offshore patrol vessel]
-
A.
Harry DeWolf-class offshore patrol vessel
The Harry DeWolf-class offshore patrol vessel is a class of Arctic-capable warships designed for surveillance, sovereignty enforcement, and support operations in Canada's northern and coastal waters.
-
B.
Alcaraz-class offshore patrol vessel
The Alcaraz-class offshore patrol vessel is a class of modern patrol ships used by the Philippine Navy for maritime security, territorial defense, and law enforcement operations in Philippine waters.
-
C.
Arafura-class offshore patrol vessel
The Arafura-class offshore patrol vessel is a modern class of Australian-built warships designed for maritime patrol, border protection, and constabulary duties in the country’s northern and regional waters.
-
D.
Fearless-class patrol vessel
The Fearless-class patrol vessel is a class of coastal patrol ships designed for maritime security, surveillance, and patrol operations, primarily operated by the Republic of Singapore Navy.
-
E.
Kingston-class coastal defence vessel
The Kingston-class coastal defence vessel is a class of Canadian naval ships designed primarily for coastal surveillance, minesweeping, and patrol duties.
- 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: River-class offshore patrol vessel Target entity description: The River-class offshore patrol vessel is a class of small Royal Navy warships designed primarily for fisheries protection, maritime security, and general patrol duties in UK and overseas waters.
-
A.
Harry DeWolf-class offshore patrol vessel
The Harry DeWolf-class offshore patrol vessel is a class of Arctic-capable warships designed for surveillance, sovereignty enforcement, and support operations in Canada's northern and coastal waters.
-
B.
Alcaraz-class offshore patrol vessel
The Alcaraz-class offshore patrol vessel is a class of modern patrol ships used by the Philippine Navy for maritime security, territorial defense, and law enforcement operations in Philippine waters.
-
C.
Arafura-class offshore patrol vessel
The Arafura-class offshore patrol vessel is a modern class of Australian-built warships designed for maritime patrol, border protection, and constabulary duties in the country’s northern and regional waters.
-
D.
Fearless-class patrol vessel
The Fearless-class patrol vessel is a class of coastal patrol ships designed for maritime security, surveillance, and patrol operations, primarily operated by the Republic of Singapore Navy.
-
E.
Kingston-class coastal defence vessel
The Kingston-class coastal defence vessel is a class of Canadian naval ships designed primarily for coastal surveillance, minesweeping, and patrol duties.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
offshore patrol vessel class
ⓘ
warship class ⓘ |
| armament |
1 × 20 mm cannon (Batch 1 typical)
ⓘ
1 × 30 mm DS30M Mk2 gun (Batch 2 typical) ⓘ machine guns ⓘ |
| builder |
BAE Systems Surface Ships
NERFINISHED
ⓘ
Vosper Thornycroft NERFINISHED ⓘ |
| countryOfOrigin | United Kingdom ⓘ |
| crew | about 30–45 personnel depending on batch ⓘ |
| designedFor |
UK waters
ⓘ
overseas waters ⓘ |
| displacement |
approximately 1,700 tonnes (Batch 1)
ⓘ
approximately 2,000 tonnes (Batch 2) ⓘ |
| enteredService |
early 2000s (Batch 1)
ⓘ
mid-2010s (Batch 2) ⓘ |
| hasCapability |
boarding operations
ⓘ
counter-piracy operations ⓘ counter-smuggling operations ⓘ helicopter deck (Batch 2 and later) ⓘ maritime surveillance ⓘ rigid-hulled inflatable boats ⓘ search and rescue support ⓘ |
| hasDesignFeature |
accommodation for embarked boarding teams
ⓘ
commercial-standard hull with naval enhancements ⓘ extended endurance for long patrols ⓘ |
| hasSubclass |
Batch 1 River-class offshore patrol vessel
ⓘ
Batch 2 River-class offshore patrol vessel NERFINISHED ⓘ Batch 3 River-class offshore patrol vessel NERFINISHED ⓘ |
| length |
approximately 79.5 metres (Batch 1)
ⓘ
approximately 90.5 metres (Batch 2) ⓘ |
| maximumSpeed |
about 20 knots (Batch 1)
ⓘ
about 24 knots (Batch 2) ⓘ |
| namedAfter | British rivers ⓘ |
| operator | Royal Navy ⓘ |
| precededBy | Island-class offshore patrol vessel NERFINISHED ⓘ |
| primaryRole |
exclusive economic zone patrol
ⓘ
fisheries protection ⓘ general patrol duties ⓘ maritime security ⓘ |
| propulsion | diesel engines ⓘ |
| succeededBy | Inspiration-class frigate NERFINISHED ⓘ |
| usedBy | Royal Navy Fishery Protection Squadron NERFINISHED ⓘ |
| usedFor |
fisheries enforcement in UK Exclusive Economic Zone
ⓘ
presence and deterrence missions ⓘ protection of offshore installations ⓘ support to border control ⓘ training and seamanship ⓘ |
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: River-class offshore patrol vessel Description of subject: The River-class offshore patrol vessel is a class of small Royal Navy warships designed primarily for fisheries protection, maritime security, and general patrol duties in UK and overseas waters.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Batch 2 River-class offshore patrol vessel