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 | Statement: [Appomattox Campaign, combatant, Army of the Potomac]

Target entity: Army of the Potomac
Context triple: [Appomattox Campaign, combatant, Army of the Potomac]

• A. 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.
• B. First United States Army
  The First United States Army is a major field army formation of the U.S. Army that played a key role in European operations during World War II, including the Battle of the Bulge.
• C. Army of the North
  The Army of the North was a key Argentine revolutionary force that campaigned in the northern regions of the former Viceroyalty of the Río de la Plata during the Argentine War of Independence.
• D. Army of the Ohio
  The Army of the Ohio was a major Union field army in the Western Theater of the American Civil War, active in key campaigns across Kentucky and Tennessee.
• E. United States X Corps
  The United States X Corps was a major U.S. Army corps-level formation that played a prominent role in the Korean War, particularly noted for its involvement in the Inchon landing and subsequent operations in North Korea.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.