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 Potomac field headquarters | Statement: [Union V Corps, garrisonOrHeadquarters, Army of the Potomac field headquarters]

Target entity: Army of the Potomac field headquarters
Context triple: [Union V Corps, garrisonOrHeadquarters, Army of the Potomac field headquarters]

• A. Command of the Army of the Potomac
  "Command of the Army of the Potomac" is Joseph Hooker's Civil War memoir recounting his leadership of the Union's principal Eastern army, including its campaigns, challenges, and internal politics.
• B. Artillery Reserve (Army of the Potomac)
  The Artillery Reserve of the Army of the Potomac was a centralized Union Civil War formation that massed and directed heavy artillery support for the army’s field corps, notably in major battles such as Gettysburg.
• C. Continental Army headquarters
  The Continental Army headquarters served as the central command and administrative center for the Continental Army during the American Revolutionary War.
• D. Army of the Potomac chosen
  The Army of the Potomac was the principal Union field army in the Eastern Theater of the American Civil War, best known for its major campaigns against Confederate forces in Virginia.
• E. Middle Department of the Union Army
  The Middle Department of the Union Army was a Civil War–era administrative military district responsible for organizing and overseeing Union forces and operations in parts of the Mid-Atlantic region.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.