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: Bulgarian political changes of November 1989 | Statement: [Autumn of Nations, includesEvent, Bulgarian political changes of November 1989]

Target entity: Bulgarian political changes of November 1989
Context triple: [Autumn of Nations, includesEvent, Bulgarian political changes of November 1989]

• A. Bulgarian coup d'état of 1944
  The Bulgarian coup d'état of 1944 was a Soviet-backed takeover that overthrew the existing monarchy-aligned government and brought a communist-dominated regime to power in Bulgaria during the final phase of World War II.
• B. 1946 Bulgarian republic referendum
  The 1946 Bulgarian republic referendum was a pivotal post-World War II vote in which Bulgarians chose to abolish the monarchy and establish a people's republic, marking the country's transition into the socialist bloc.
• C. Revolutions of 1989 chosen
  The Revolutions of 1989 were a wave of largely peaceful uprisings that led to the collapse of communist regimes across Central and Eastern Europe and marked the end of the Cold War era.
• D. Bulgarian National Revival
  The Bulgarian National Revival was a 19th-century cultural and political movement that fostered national consciousness, education, and the struggle for autonomy and independence among Bulgarians under Ottoman rule.
• E. Prague Spring
  Prague Spring was a brief period of political liberalization and reform in communist Czechoslovakia in 1968 that was ultimately crushed by a Soviet-led invasion.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.