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: Byzantine intervention in Bulgaria | Statement: [Kievan Rus' invasion of Bulgaria, result, Byzantine intervention in Bulgaria]

Target entity: Byzantine intervention in Bulgaria
Context triple: [Kievan Rus' invasion of Bulgaria, result, Byzantine intervention in Bulgaria]

• A. Ottoman conquest of Bulgaria
  The Ottoman conquest of Bulgaria was the late 14th–early 15th century series of campaigns through which the Ottoman Empire subjugated and annexed the medieval Bulgarian states, ending their independence and integrating their territories into the Ottoman realm.
• B. Byzantine reconquest of the Balkans
  The Byzantine reconquest of the Balkans was a late 10th–early 11th century military campaign in which the Byzantine Empire gradually reasserted control over Balkan territories, culminating in the defeat of the First Bulgarian Empire and the restoration of imperial authority in the region.
• C. 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.
• D. Byzantine–Bulgarian wars
  The Byzantine–Bulgarian wars were a series of medieval conflicts between the Byzantine Empire and the Bulgarian states that shaped the political and territorial balance of power in the Balkans.
• E. Kievan Rus' invasion of Bulgaria chosen
  The Kievan Rus' invasion of Bulgaria was a 10th-century military campaign in which Prince Sviatoslav I of Kiev overran much of the First Bulgarian Empire, reshaping the balance of power in Eastern Europe and prompting Byzantine intervention.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.