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: Soviet deep operations doctrine | Statement: [21st Army (Red Army), militaryDoctrine, Soviet deep operations doctrine]

Target entity: Soviet deep operations doctrine
Context triple: [21st Army (Red Army), militaryDoctrine, Soviet deep operations doctrine]

• A. Soviet deep operations doctrine chosen
  Soviet deep operations doctrine was a World War II–era Red Army operational concept that emphasized large-scale, coordinated offensives designed to penetrate enemy defenses in depth and rapidly exploit breakthroughs with mobile forces.
• B. Operation Clausewitz
  Operation Clausewitz was a component phase of the German 1942 summer offensive on the Eastern Front, focused on advancing toward and securing key objectives as part of the broader Case Blue campaign.
• C. Soviet High Command
  The Soviet High Command was the top-level military leadership of the Soviet Union, responsible for directing its armed forces and overall wartime strategy.
• D. Soviet Armed Forces in World War II
  The Soviet Armed Forces in World War II were the military forces of the USSR whose massive Eastern Front campaigns played a decisive role in defeating Nazi Germany.
• E. Soviet field armies
  Soviet field armies were large operational-level military formations of the Red Army responsible for conducting major ground campaigns during the Second World War and other conflicts.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.