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 Tsardom | Statement: [Murad I, conflictWith, Bulgarian Tsardom]

Target entity: Bulgarian Tsardom
Context triple: [Murad I, conflictWith, Bulgarian Tsardom]

• A. Second Bulgarian Empire chosen
  The Second Bulgarian Empire was a medieval Bulgarian state (1185–1396) that emerged after a successful uprising against Byzantine rule and became a major political and cultural power in the Balkans before falling to the Ottoman Empire.
• B. First Bulgarian Empire
  The First Bulgarian Empire was a medieval Balkan state that became a major political and cultural power in Eastern Europe, playing a key role in the spread of Slavic literacy and Orthodox Christianity.
• C. Serbian Empire
  The Serbian Empire was a powerful medieval Balkan state that reached its zenith in the 14th century under Emperor Stefan Dušan, encompassing large parts of the central and southern Balkans.
• D. Kingdom of Bulgaria
  The Kingdom of Bulgaria was a Balkan monarchy that existed from the late 19th century until 1946, known for its involvement in both World Wars and its shifting alliances among the great powers of Europe.
• E. Serbian principalities
  The Serbian principalities were a group of medieval South Slavic states in the Balkans that emerged from the fragmentation of earlier Serbian realms and frequently clashed with neighboring powers such as the Ottoman Empire.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.