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: Southern Front (Red Army) | Statement: [Perekop–Chongar offensive (1920), front, Southern Front (Red Army)]

Target entity: Southern Front (Red Army)
Context triple: [Perekop–Chongar offensive (1920), front, Southern Front (Red Army)]

• A. Red Southern Front (Red Army) chosen
  The Red Southern Front was a major operational formation of the Bolshevik Red Army during the Russian Civil War, responsible for conducting campaigns against White and other anti-Bolshevik forces in southern Russia.
• B. Soviet Southern Front
  The Soviet Southern Front was a major Red Army formation on the Eastern Front of World War II, responsible for defending and conducting operations in the southern sector of the Soviet–German front, including in the Donbass region.
• C. Western Front (Red Army)
  The Western Front (Red Army) was a major Soviet operational-strategic formation responsible for conducting large-scale military operations against German forces on the central sector of the Eastern Front during World War II.
• D. Northern Front (Soviet Union)
  The Northern Front (Soviet Union) was a World War II Red Army formation responsible for defending the northwestern USSR, including the approaches to Leningrad, in the early stages of the German invasion.
• E. Transbaikal Front
  The Transbaikal Front was a major Soviet Red Army formation that spearheaded operations against Japanese forces in Manchuria during the final stages of World War II.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.