Union V Corps
E502544
Union V Corps was a major infantry formation of the Union Army of the Potomac during the American Civil War, noted for its significant combat role in key battles such as Gettysburg.
All labels observed (3)
| Label | Occurrences |
|---|---|
| V Corps, Army of the Potomac | 4 |
| Union V Corps canonical | 3 |
| Army of the Potomac V Corps | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5149840 — 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: Union V Corps Context triple: [Fighting at Devil’s Den, unitInvolvedSide1, Union V Corps]
-
A.
Union III Corps
Union III Corps was a major formation of the Union Army of the Potomac during the American Civil War, noted for its hard fighting and heavy casualties in key battles such as Gettysburg.
-
B.
XIII Corps
XIII Corps was a military formation designation used by several armies, most notably as a corps-level unit in the British and United States armies during major 20th-century conflicts.
-
C.
French III Corps
The French III Corps was a major field formation of Napoleon’s army that played a significant role in the Waterloo campaign of 1815.
-
D.
French IV Corps
The French IV Corps was a major corps-sized formation of Napoleon's army that played a significant role in the Waterloo campaign of 1815.
-
E.
XVI Corps
XVI Corps was a field corps of the Ottoman Army that served on multiple fronts during World War I, including the Gallipoli and Caucasus campaigns.
- 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: Union V Corps Target entity description: Union V Corps was a major infantry formation of the Union Army of the Potomac during the American Civil War, noted for its significant combat role in key battles such as Gettysburg.
-
A.
Union III Corps
Union III Corps was a major formation of the Union Army of the Potomac during the American Civil War, noted for its hard fighting and heavy casualties in key battles such as Gettysburg.
-
B.
XIII Corps
XIII Corps was a military formation designation used by several armies, most notably as a corps-level unit in the British and United States armies during major 20th-century conflicts.
-
C.
French III Corps
The French III Corps was a major field formation of Napoleon’s army that played a significant role in the Waterloo campaign of 1815.
-
D.
French IV Corps
The French IV Corps was a major corps-sized formation of Napoleon's army that played a significant role in the Waterloo campaign of 1815.
-
E.
XVI Corps
XVI Corps was a field corps of the Ottoman Army that served on multiple fronts during World War I, including the Gallipoli and Caucasus campaigns.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
infantry corps
ⓘ
military unit ⓘ |
| activeDuring |
1862
ⓘ
1863 ⓘ 1864 ⓘ 1865 ⓘ |
| allegiance | Union NERFINISHED ⓘ |
| alsoKnownAs | Fifth Army Corps NERFINISHED ⓘ |
| branch | Union Army NERFINISHED ⓘ |
| conflict | American Civil War ⓘ |
| contributedTo | final defeat of the Army of Northern Virginia ⓘ |
| corpsNumber | V NERFINISHED ⓘ |
| country | United States of America ⓘ |
| engagedInBattle |
Battle of Antietam
NERFINISHED
ⓘ
Battle of Chancellorsville NERFINISHED ⓘ Battle of Cold Harbor NERFINISHED ⓘ Battle of Five Forks NERFINISHED ⓘ Battle of Fredericksburg NERFINISHED ⓘ Battle of Gettysburg NERFINISHED ⓘ Battle of Spotsylvania Court House NERFINISHED ⓘ Battle of the Wilderness NERFINISHED ⓘ Peninsula Campaign NERFINISHED ⓘ Second Battle of Bull Run NERFINISHED ⓘ Siege of Petersburg NERFINISHED ⓘ |
| garrisonOrHeadquarters | Army of the Potomac field headquarters NERFINISHED ⓘ |
| historicalEra | 19th century ⓘ |
| militaryFormationType | corps-level formation ⓘ |
| notableAction | breakthrough of Confederate lines at Five Forks ⓘ |
| notableCommander |
Fitz John Porter
NERFINISHED
ⓘ
George Sykes NERFINISHED ⓘ Gouverneur K. Warren NERFINISHED ⓘ |
| notableFor | significant combat role in major battles of the Eastern Theater ⓘ |
| notableSubunit |
1st Division, V Corps
NERFINISHED
ⓘ
2nd Division, V Corps NERFINISHED ⓘ 3rd Division, V Corps NERFINISHED ⓘ |
| opposedTo | Confederate States Army NERFINISHED ⓘ |
| participatedInCampaign |
Appomattox Campaign
NERFINISHED
ⓘ
Overland Campaign NERFINISHED ⓘ |
| partOf | Army of the Potomac NERFINISHED ⓘ |
| roleAtGettysburg |
defense of Little Round Top by attached units
ⓘ
defense of the Union left flank ⓘ fighting in the Wheatfield ⓘ |
| serviceBranch | infantry ⓘ |
| side | Union NERFINISHED ⓘ |
| theaterOfOperations | Eastern Theater of the American Civil War NERFINISHED ⓘ |
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: Union V Corps Description of subject: Union V Corps was a major infantry formation of the Union Army of the Potomac during the American Civil War, noted for its significant combat role in key battles such as Gettysburg.
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Fighting at Devil’s Den
this entity surface form:
V Corps, Army of the Potomac
this entity surface form:
V Corps, Army of the Potomac
this entity surface form:
V Corps, Army of the Potomac
this entity surface form:
Army of the Potomac V Corps
this entity surface form:
V Corps, Army of the Potomac