21st Anti-Tank Regiment, Royal Artillery
E333242
The 21st Anti-Tank Regiment, Royal Artillery was a British Army unit of World War II specializing in anti-tank warfare, serving in armoured formations such as the Guards Armoured Division.
All labels observed (1)
| Label | Occurrences |
|---|---|
| 21st Anti-Tank Regiment, Royal Artillery canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3181475 — 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: 21st Anti-Tank Regiment, Royal Artillery Context triple: [Guards Armoured Division, hasUnit, 21st Anti-Tank Regiment, Royal Artillery]
-
A.
1st Airlanding Anti-Tank Battery, Royal Artillery
The 1st Airlanding Anti-Tank Battery, Royal Artillery was a British airborne artillery unit of the Second World War, equipped with anti-tank guns to support glider-borne infantry operations.
-
B.
Blackhorse Regiment
The Blackhorse Regiment is the famed 11th Armored Cavalry Regiment of the United States Army, known for its armored reconnaissance and cavalry operations in conflicts such as the Vietnam War and the Cold War.
-
C.
1st Airlanding Light Regiment, Royal Artillery
The 1st Airlanding Light Regiment, Royal Artillery was a British airborne artillery unit of the Second World War that provided light gun support to glider-borne infantry formations.
-
D.
Royal Tank Regiment
The Royal Tank Regiment is a British Army armoured regiment renowned as the oldest tank unit in the world and a key component of the United Kingdom’s armoured warfare capability.
-
E.
21 Signal Regiment
21 Signal Regiment is a British Army unit that provides specialist military communications and information systems support as part of the Royal Corps of Signals.
- 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: 21st Anti-Tank Regiment, Royal Artillery Target entity description: The 21st Anti-Tank Regiment, Royal Artillery was a British Army unit of World War II specializing in anti-tank warfare, serving in armoured formations such as the Guards Armoured Division.
-
A.
1st Airlanding Anti-Tank Battery, Royal Artillery
The 1st Airlanding Anti-Tank Battery, Royal Artillery was a British airborne artillery unit of the Second World War, equipped with anti-tank guns to support glider-borne infantry operations.
-
B.
Blackhorse Regiment
The Blackhorse Regiment is the famed 11th Armored Cavalry Regiment of the United States Army, known for its armored reconnaissance and cavalry operations in conflicts such as the Vietnam War and the Cold War.
-
C.
1st Airlanding Light Regiment, Royal Artillery
The 1st Airlanding Light Regiment, Royal Artillery was a British airborne artillery unit of the Second World War that provided light gun support to glider-borne infantry formations.
-
D.
Royal Tank Regiment
The Royal Tank Regiment is a British Army armoured regiment renowned as the oldest tank unit in the world and a key component of the United Kingdom’s armoured warfare capability.
-
E.
21 Signal Regiment
21 Signal Regiment is a British Army unit that provides specialist military communications and information systems support as part of the Royal Corps of Signals.
- F. None of above. chosen
Statements (20)
| Predicate | Object |
|---|---|
| instanceOf |
British Army unit
ⓘ
Royal Artillery regiment ⓘ anti-tank regiment ⓘ |
| allegiance | British Crown ⓘ |
| branch |
British Army
ⓘ
Royal Regiment of Artillery ⓘ
surface form:
Royal Artillery
|
| category | British anti-tank regiments of World War II ⓘ |
| conflict |
World War II
ⓘ
surface form:
Second World War
|
| country | United Kingdom ⓘ |
| equipmentType | anti-tank guns ⓘ |
| era | World War II ⓘ |
| militaryFunction | direct fire against enemy armour ⓘ |
| notableAssociation | Guards Armoured Division ⓘ |
| partOf |
Royal Regiment of Artillery
ⓘ
surface form:
Royal Artillery anti-tank branch
|
| role | anti-tank support ⓘ |
| servedIn | Guards Armoured Division ⓘ |
| service |
British Army formations
ⓘ
surface form:
British Army armoured formations
|
| specialization | anti-tank warfare ⓘ |
| theatre | European theatre of World War II ⓘ |
| type | artillery regiment ⓘ |
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: 21st Anti-Tank Regiment, Royal Artillery Description of subject: The 21st Anti-Tank Regiment, Royal Artillery was a British Army unit of World War II specializing in anti-tank warfare, serving in armoured formations such as the Guards Armoured Division.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.