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: Cavalry Corps (Army of the Potomac) | Statement: [Gettysburg Union units and formations, hasPart, Cavalry Corps (Army of the Potomac)]

Target entity: Cavalry Corps (Army of the Potomac)
Context triple: [Gettysburg Union units and formations, hasPart, Cavalry Corps (Army of the Potomac)]

• A. Cavalry Corps, Army of the Potomac chosen
  The Cavalry Corps, Army of the Potomac was the primary mounted arm of the Union’s principal Eastern army during the American Civil War, responsible for reconnaissance, screening, raiding, and cavalry combat in major campaigns such as Gettysburg and the Overland Campaign.
• B. Reserve Cavalry
  Reserve Cavalry was the dedicated mounted reserve formation of Napoleon’s French Armée du Nord, intended for rapid, decisive shock action and exploitation on the battlefield.
• C. IX Corps, Army of the Potomac
  IX Corps, Army of the Potomac was a major Union infantry corps in the American Civil War, noted for its extensive combat service in the Eastern Theater under generals such as Ambrose Burnside and its participation in key campaigns including the Overland and Petersburg operations.
• D. 2nd Cavalry Group
  The 2nd Cavalry Group was a U.S. Army mechanized cavalry unit in World War II known for reconnaissance, screening, and security operations in support of major armored and infantry formations.
• E. Morgan's Rifle Corps
  Morgan's Rifle Corps was an elite Continental Army light infantry unit of expert marksmen led by Daniel Morgan during the American Revolutionary War.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.