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: Army of the Trans-Mississippi | Statement: [Confederate States Army, hasPart, Army of the Trans-Mississippi]

Target entity: Army of the Trans-Mississippi
Context triple: [Confederate States Army, hasPart, Army of the Trans-Mississippi]

• A. Confederate Army of Mississippi
  The Confederate Army of Mississippi was a major Confederate field army in the Western Theater of the American Civil War, notably commanded by generals such as Albert Sidney Johnston and P.G.T. Beauregard.
• B. Army of the Tennessee
  The Army of the Tennessee was a major Union field army in the Western Theater of the American Civil War, commanded at various times by generals such as Ulysses S. Grant and William T. Sherman.
• C. Army of Tennessee
  The Army of Tennessee was a principal Confederate field army in the Western Theater of the American Civil War, active in major campaigns such as Chickamauga, Chattanooga, and Atlanta.
• D. Confederate States Army
  The Confederate States Army was the land warfare force of the secessionist Southern states during the American Civil War, known for figures like Robert E. Lee and Stonewall Jackson.
• E. Army of the Shenandoah (Confederate)
  The Army of the Shenandoah (Confederate) was an early Confederate field army operating in the strategically vital Shenandoah Valley of Virginia during the opening phase of 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: Army of the Trans-Mississippi
Triple: [Confederate States Army, hasPart, Army of the Trans-Mississippi]

The Army of the Trans-Mississippi was a major Confederate field army that operated west of the Mississippi River during the American Civil War, overseeing military campaigns in states such as Arkansas, Texas, and Louisiana.

Target entity: Army of the Trans-Mississippi
Target entity description: The Army of the Trans-Mississippi was a major Confederate field army that operated west of the Mississippi River during the American Civil War, overseeing military campaigns in states such as Arkansas, Texas, and Louisiana.

• A. Confederate Army of Mississippi
  The Confederate Army of Mississippi was a major Confederate field army in the Western Theater of the American Civil War, notably commanded by generals such as Albert Sidney Johnston and P.G.T. Beauregard.
• B. Army of the Tennessee
  The Army of the Tennessee was a major Union field army in the Western Theater of the American Civil War, commanded at various times by generals such as Ulysses S. Grant and William T. Sherman.
• C. Army of Tennessee
  The Army of Tennessee was a principal Confederate field army in the Western Theater of the American Civil War, active in major campaigns such as Chickamauga, Chattanooga, and Atlanta.
• D. Confederate States Army
  The Confederate States Army was the land warfare force of the secessionist Southern states during the American Civil War, known for figures like Robert E. Lee and Stonewall Jackson.
• E. Army of the Shenandoah (Confederate)
  The Army of the Shenandoah (Confederate) was an early Confederate field army operating in the strategically vital Shenandoah Valley of Virginia during the opening phase of the American Civil War.
• F. None of above. chosen