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: British 21st Army Group (in Northwest Europe) | Statement: [6th Airborne Division, partOf, British 21st Army Group (in Northwest Europe)]

Target entity: British 21st Army Group (in Northwest Europe)
Context triple: [6th Airborne Division, partOf, British 21st Army Group (in Northwest Europe)]

• A. 12th Army Group
  The 12th Army Group was a major U.S. Army field army formation in northwest Europe during World War II, commanded by General Omar Bradley and instrumental in the Allied advance from Normandy into Germany.
• B. 21st Army Group chosen
  The 21st Army Group was a major British-led Allied field army formation in Northwest Europe during World War II, commanded by General Bernard Montgomery and instrumental in the liberation of Western Europe after D-Day.
• C. British Ninth Army
  The British Ninth Army was a major British field army formation that operated primarily in the Middle East during World War II, overseeing forces in regions such as Palestine, Syria, and Lebanon.
• D. British First Army
  The British First Army was a World War II Allied field army that fought in the North African campaign, notably in Tunisia, before participating in the invasion of Sicily.
• E. British First Army
  The British First Army was a major field formation of the British Army that played a key role on the Western Front during World War I, participating in several major offensives in France and Flanders.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.