Triple

Given a phrase, classify it is english named entity (e.g., persons, organizations, works of art) in Latin script, or not (e.g., literals, dates, URLs, verbose phrases). For disambiguation, the statement where the phrase occurs as object is also given. Please return a JSON object with `phrase` (string, the phrase being analyzed) and `is_ne` (boolean, indicating whether the phrase is a Named Entity).

Phrase: XXI Corps (Army of the Cumberland) | Statement: [Army of the Cumberland, notableUnit, XXI Corps (Army of the Cumberland)]

Target entity: XXI Corps (Army of the Cumberland)
Context triple: [Army of the Cumberland, notableUnit, XXI Corps (Army of the Cumberland)]

• A. XIV Corps (Army of the Cumberland)
  XIV Corps (Army of the Cumberland) was a major Union Army corps in the American Civil War, distinguished for its key role in campaigns such as Chickamauga and Chattanooga under the Army of the Cumberland.
• B. IV Corps (Army of the Cumberland)
  IV Corps (Army of the Cumberland) was a major Union infantry corps that played a significant role in the Western Theater of the American Civil War, participating in campaigns such as Chickamauga, Chattanooga, and the Atlanta Campaign.
• C. XXIII Corps (Army of the Ohio)
  XXIII Corps (Army of the Ohio) was a Union Army corps that served primarily in the Western Theater of the American Civil War, participating in campaigns such as the Atlanta and Carolinas operations.
• D. Army of the Cumberland
  The Army of the Cumberland was a major Union field army in the Western Theater of the American Civil War, noted for its key role in campaigns such as Chickamauga, Chattanooga, and the drive toward Atlanta.
• E. XX Corps (Union Army)
  XX Corps (Union Army) was a major Union Army corps formed in 1864 that served primarily in the Western Theater under generals like Joseph Hooker and Henry Slocum, notably participating in the Atlanta Campaign and Sherman's March to the Sea during the American Civil War.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"

Entity: XXI Corps (Army of the Cumberland)
Triple: [Army of the Cumberland, notableUnit, XXI Corps (Army of the Cumberland)]

XXI Corps (Army of the Cumberland) was a Union Army corps that served in the Western Theater of the American Civil War, participating in major campaigns under the Army of the Cumberland.

Target entity: XXI Corps (Army of the Cumberland)
Target entity description: XXI Corps (Army of the Cumberland) was a Union Army corps that served in the Western Theater of the American Civil War, participating in major campaigns under the Army of the Cumberland.

• A. XIV Corps (Army of the Cumberland)
  XIV Corps (Army of the Cumberland) was a major Union Army corps in the American Civil War, distinguished for its key role in campaigns such as Chickamauga and Chattanooga under the Army of the Cumberland.
• B. IV Corps (Army of the Cumberland)
  IV Corps (Army of the Cumberland) was a major Union infantry corps that played a significant role in the Western Theater of the American Civil War, participating in campaigns such as Chickamauga, Chattanooga, and the Atlanta Campaign.
• C. XXIII Corps (Army of the Ohio)
  XXIII Corps (Army of the Ohio) was a Union Army corps that served primarily in the Western Theater of the American Civil War, participating in campaigns such as the Atlanta and Carolinas operations.
• D. Army of the Cumberland
  The Army of the Cumberland was a major Union field army in the Western Theater of the American Civil War, noted for its key role in campaigns such as Chickamauga, Chattanooga, and the drive toward Atlanta.
• E. XX Corps (Union Army)
  XX Corps (Union Army) was a major Union Army corps formed in 1864 that served primarily in the Western Theater under generals like Joseph Hooker and Henry Slocum, notably participating in the Atlanta Campaign and Sherman's March to the Sea during the American Civil War.
• F. None of above. chosen