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: Defense of East Prussia | Statement: [4th Army, participatedIn, Defense of East Prussia]

Target entity: Defense of East Prussia
Context triple: [4th Army, participatedIn, Defense of East Prussia]

• A. Defence of the Oder line
  Defence of the Oder line was a late-World War II German defensive campaign along the Oder River aimed at halting the advancing Soviet forces before they could reach Berlin.
• B. Russian invasion of East Prussia chosen
  The Russian invasion of East Prussia was an early World War I campaign in 1914 in which Russian forces advanced into German territory, triggering major battles such as Tannenberg and the Masurian Lakes.
• C. Courland Pocket
  The Courland Pocket was a World War II encircled area in western Latvia where German forces were cut off by the Soviet Red Army and continued to resist until the war’s end in Europe.
• D. Battle of the Niemen River
  The Battle of the Niemen River was a decisive 1920 engagement in which Polish forces defeated the Red Army, helping secure Poland’s eastern borders at the end of the Polish–Soviet War.
• E. Second Battle of the Masurian Lakes
  The Second Battle of the Masurian Lakes was a major German offensive against Russian forces in East Prussia in early 1915, resulting in heavy Russian losses and a significant German advance on the Eastern Front during World War I.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.