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: Leadership in the Serbo–Bulgarian War | Statement: [Alexander I of Bulgaria, notableWork, Leadership in the Serbo–Bulgarian War]

Target entity: Leadership in the Serbo–Bulgarian War
Context triple: [Alexander I of Bulgaria, notableWork, Leadership in the Serbo–Bulgarian War]

• A. Serbo-Bulgarian War chosen
  The Serbo-Bulgarian War was a brief 1885 conflict in the Balkans between Serbia and the newly unified Bulgaria that helped establish Bulgaria’s military reputation and reshape regional power dynamics.
• B. Macedonian Struggle
  The Macedonian Struggle was a series of armed conflicts and political efforts in the late 19th and early 20th centuries over control and national identity in the Ottoman-ruled region of Macedonia, primarily involving Greek, Bulgarian, and Serbian interests.
• C. Serbian–Ottoman War (1876–1878)
  The Serbian–Ottoman War (1876–1878) was a key Balkan conflict in which Serbia, backed by Russia and other Slavic supporters, fought the Ottoman Empire as part of the broader Eastern Crisis, contributing to the weakening of Ottoman control in the region and paving the way for Serbian independence and territorial expansion.
• D. Second Norman invasion of the Balkans
  The Second Norman invasion of the Balkans was a late 11th-century military campaign in which Norman forces from southern Italy attacked and temporarily captured key Byzantine territories in the western Balkans.
• E. Battle of Shipka Pass
  The Battle of Shipka Pass was a series of crucial engagements in 1877–1878 in the Balkan Mountains where Russian and Bulgarian forces halted Ottoman advances, playing a decisive role in Bulgaria’s liberation.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.