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 Group Vistula | Statement: [German Ninth Army, subordinateTo, Army Group Vistula]

Target entity: Army Group Vistula
Context triple: [German Ninth Army, subordinateTo, Army Group Vistula]

• A. Army Group Vistula chosen
  Army Group Vistula was a late-World War II German army group formed in early 1945 to defend against the advancing Soviet forces on the Eastern Front, particularly during the final battles around Berlin.
• B. Army Group Centre
  Army Group Centre was a major German Wehrmacht formation on the Eastern Front during World War II, known for its central role in operations against the Soviet Union and its eventual destruction in the war’s final stages.
• C. Army Group Ostmark
  Army Group Ostmark was a late-World War II German army group formed from the remnants of Wehrmacht forces to defend Austria and surrounding regions in the final stages of the conflict.
• D. Army Group Courland
  Army Group Courland was a German Wehrmacht formation that continued fighting in the isolated Courland Pocket in Latvia during the final months of World War II.
• E. Army Group Don
  Army Group Don was a short-lived German Wehrmacht army group formed in late 1942 on the Eastern Front to coordinate forces, including the encircled 6th Army, during the Battle of Stalingrad.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.