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: Late Middle Ages in Bulgaria | Statement: [Tsaritsa Irina, historicalPeriod, Late Middle Ages in Bulgaria]

Target entity: Late Middle Ages in Bulgaria
Context triple: [Tsaritsa Irina, historicalPeriod, Late Middle Ages in Bulgaria]

• A. Bulgarians of Olden Time
  "Bulgarians of Olden Time" is a classic 19th-century Bulgarian literary work by Lyuben Karavelov that vividly portrays traditional Bulgarian life, character, and customs under Ottoman rule.
• B. Christianization of Bulgaria
  The Christianization of Bulgaria was the 9th-century process by which the First Bulgarian Empire officially adopted Eastern Orthodox Christianity, shaping the country's religious and cultural identity under the Bulgarian Orthodox Church.
• C. Old Great Bulgaria
  Old Great Bulgaria was a 7th-century Bulgar state on the Pontic–Caspian steppe that formed an important early political center of the Bulgars before their migration and the establishment of the First Bulgarian Empire.
• D. Serbian medieval courts
  Serbian medieval courts were judicial bodies in the medieval Serbian state responsible for administering justice according to a blend of customary law, Byzantine-influenced legal codes, and Orthodox canon law.
• E. 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.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.