21st Tank Battalion
E890748
The 21st Tank Battalion was a U.S. Army armored battalion that served as one of the tank units of the 10th Armored Division during World War II.
All labels observed (2)
| Label | Occurrences |
|---|---|
| 21st Tank Battalion canonical | 2 |
| 21st Tank Battalion (10th Armored Division) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10711451 — 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 Tank Battalion Context triple: [10th Armored Division, component, 21st Tank Battalion]
-
A.
37th Tank Battalion
The 37th Tank Battalion was a U.S. Army armored battalion that served as a key combat unit in World War II, notably distinguished for its role in General Patton’s Third Army operations in Europe.
-
B.
68th Tank Battalion
The 68th Tank Battalion was a U.S. Army armored battalion that served as a key combat unit during World War II and the early Cold War era.
-
C.
69th Tank Battalion
The 69th Tank Battalion was a U.S. Army armored unit that served as a key tank battalion within the 6th Armored Division during World War II.
-
D.
35th Tank Battalion
The 35th Tank Battalion was a U.S. Army armored battalion that served as a key combat unit in World War II, notably as part of General Patton’s Third Army in the European Theater.
-
E.
11th Tank Battalion
The 11th Tank Battalion was an armored unit that served as a key tank formation within the U.S. Army’s 10th Armored Division during World War II.
- 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 Tank Battalion Target entity description: The 21st Tank Battalion was a U.S. Army armored battalion that served as one of the tank units of the 10th Armored Division during World War II.
-
A.
37th Tank Battalion
The 37th Tank Battalion was a U.S. Army armored battalion that served as a key combat unit in World War II, notably distinguished for its role in General Patton’s Third Army operations in Europe.
-
B.
68th Tank Battalion
The 68th Tank Battalion was a U.S. Army armored battalion that served as a key combat unit during World War II and the early Cold War era.
-
C.
69th Tank Battalion
The 69th Tank Battalion was a U.S. Army armored unit that served as a key tank battalion within the 6th Armored Division during World War II.
-
D.
35th Tank Battalion
The 35th Tank Battalion was a U.S. Army armored battalion that served as a key combat unit in World War II, notably as part of General Patton’s Third Army in the European Theater.
-
E.
11th Tank Battalion
The 11th Tank Battalion was an armored unit that served as a key tank formation within the U.S. Army’s 10th Armored Division during World War II.
- F. None of above. chosen
Statements (14)
| Predicate | Object |
|---|---|
| instanceOf |
U.S. Army unit
ⓘ
armored battalion ⓘ |
| allegiance | United States of America ⓘ |
| associatedWith | European Theater of Operations ⓘ |
| branch | United States Army ⓘ |
| conflict | World War II ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| era |
World War II era
ⓘ
linked to:
World War II
|
| militaryFormation | battalion ⓘ |
| notableFor | service with the 10th Armored Division in World War II ⓘ |
| partOf | 10th Armored Division ⓘ |
| role | armored warfare ⓘ |
| serviceBranch |
U.S. Army Armor
ⓘ
linked to:
United States Army Armor Branch
|
| type | tank battalion ⓘ |
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 Tank Battalion Description of subject: The 21st Tank Battalion was a U.S. Army armored battalion that served as one of the tank units of the 10th Armored Division during World War II.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: 21st Tank Battalion