Second Manassas
E310435
Second Manassas, also known as the Second Battle of Bull Run, was a major American Civil War battle in August 1862 in Virginia that resulted in a decisive Confederate victory under General Robert E. Lee.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Second Manassas canonical | 2 |
| Battle of Second Manassas | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2539873 — 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: Second Manassas Context triple: [Brawner Farm, significantEvent, Second Manassas]
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A.
Battle of Gaines’s Mill
The Battle of Gaines’s Mill was a major American Civil War engagement in June 1862 during the Peninsula Campaign, marking Confederate General Robert E. Lee’s first major victory over Union forces near Richmond, Virginia.
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B.
Seven Days Battles
The Seven Days Battles were a series of American Civil War engagements in 1862 near Richmond, Virginia, in which Confederate forces under Robert E. Lee halted the Union Army’s Peninsula Campaign.
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C.
Battle of Mechanicsville
The Battle of Mechanicsville was an 1862 American Civil War engagement near Richmond, Virginia, marking the opening clash of Robert E. Lee’s Seven Days Campaign against Union forces during the Peninsula Campaign.
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D.
Manassas Campaign
The Manassas Campaign was the early American Civil War operation in northern Virginia that culminated in the First Battle of Bull Run, marking the war’s first major land engagement.
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E.
Battle of Spotsylvania Court House
The Battle of Spotsylvania Court House was a major and brutal engagement of the American Civil War’s Overland Campaign in May 1864, marked by intense trench warfare and heavy casualties between Union forces under Ulysses S. Grant and Confederate forces under Robert E. Lee.
- 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: Second Manassas Target entity description: Second Manassas, also known as the Second Battle of Bull Run, was a major American Civil War battle in August 1862 in Virginia that resulted in a decisive Confederate victory under General Robert E. Lee.
-
A.
Battle of Gaines’s Mill
The Battle of Gaines’s Mill was a major American Civil War engagement in June 1862 during the Peninsula Campaign, marking Confederate General Robert E. Lee’s first major victory over Union forces near Richmond, Virginia.
-
B.
Seven Days Battles
The Seven Days Battles were a series of American Civil War engagements in 1862 near Richmond, Virginia, in which Confederate forces under Robert E. Lee halted the Union Army’s Peninsula Campaign.
-
C.
Battle of Mechanicsville
The Battle of Mechanicsville was an 1862 American Civil War engagement near Richmond, Virginia, marking the opening clash of Robert E. Lee’s Seven Days Campaign against Union forces during the Peninsula Campaign.
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D.
Manassas Campaign
The Manassas Campaign was the early American Civil War operation in northern Virginia that culminated in the First Battle of Bull Run, marking the war’s first major land engagement.
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E.
Battle of Spotsylvania Court House
The Battle of Spotsylvania Court House was a major and brutal engagement of the American Civil War’s Overland Campaign in May 1864, marked by intense trench warfare and heavy casualties between Union forces under Ulysses S. Grant and Confederate forces under Robert E. Lee.
- F. None of above. chosen
Statements (44)
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: Second Manassas Description of subject: Second Manassas, also known as the Second Battle of Bull Run, was a major American Civil War battle in August 1862 in Virginia that resulted in a decisive Confederate victory under General Robert E. Lee.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Battle of Second Manassas