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: Sack of Pliska (811) | Statement: [Battle of Varbitsa Pass, relatedEvent, Sack of Pliska (811)]

Target entity: Sack of Pliska (811)
Context triple: [Battle of Varbitsa Pass, relatedEvent, Sack of Pliska (811)]

• A. Battle of Pliska chosen
  The Battle of Pliska was a major 811 AD clash in which the First Bulgarian Empire decisively defeated and annihilated a Byzantine army led by Emperor Nikephoros I, reshaping the balance of power in the Balkans.
• B. Siege of Adrianople (813)
  The Siege of Adrianople (813) was a major early 9th-century military engagement in which Bulgarian forces under Khan Krum besieged and captured the Byzantine city of Adrianople during the Byzantine–Bulgarian wars.
• C. Sack of Thessalonica (1185)
  The Sack of Thessalonica (1185) was a devastating Norman capture and plundering of the Byzantine Empire’s second-largest city, resulting in massive destruction and loss of life and marking a major crisis in late 12th-century Byzantium.
• D. Kievan Rus' invasion of Bulgaria
  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.
• E. Siege of Adrianople (914)
  The Siege of Adrianople (914) was a major early 10th-century confrontation in which Bulgarian forces besieged and captured the Byzantine city of Adrianople during the Byzantine–Bulgarian wars.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.