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 West (Union) | Statement: [Nathaniel Lyon, commandedUnit, Army of the West (Union)]

Target entity: Army of the West (Union)
Context triple: [Nathaniel Lyon, commandedUnit, Army of the West (Union)]

• A. 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.
• B. Army of the Gulf
  The Army of the Gulf was a Union field army in the American Civil War that operated primarily along the Gulf Coast, including in the campaigns for New Orleans and Mobile.
• C. 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.
• D. Army of the Mississippi chosen
  The Army of the Mississippi was a Union field army during the American Civil War that operated primarily in the Western Theater, participating in key campaigns along the Mississippi River and in the Western states.
• E. Republican Army of the Centre
  The Republican Army of the Centre was a major formation of the Spanish Republican forces during the Spanish Civil War, responsible for defending the central front, including the approaches to Madrid.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.