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: fall of Belgrade (1915) | Statement: [Invasion of Serbia (1915), notableEvent, fall of Belgrade (1915)]

Target entity: fall of Belgrade (1915)
Context triple: [Invasion of Serbia (1915), notableEvent, fall of Belgrade (1915)]

• A. Invasion of Serbia (1915) chosen
  The Invasion of Serbia (1915) was a Central Powers offensive during World War I that overwhelmed Serbian forces, leading to the occupation of Serbia and a massive civilian and military retreat through Albania.
• B. Siege of Sarajevo
  The Siege of Sarajevo was a prolonged and devastating military blockade of Bosnia and Herzegovina’s capital from 1992 to 1996, marked by intense shelling, sniper attacks, and severe civilian suffering during the Bosnian War.
• C. Battle of Kosovo 1389
  The Battle of Kosovo 1389 was a pivotal clash between Serbian-led Christian forces and the Ottoman Empire that became a foundational myth in Serbian history and a key moment in the Ottoman expansion into the Balkans.
• D. Battle of Sutjeska
  The Battle of Sutjeska was a major World War II engagement in 1943 in which Yugoslav Partisans, encircled by Axis forces in southeastern Bosnia and northern Montenegro, suffered heavy losses but ultimately broke through and solidified their role as a key resistance movement.
• E. Balkan Campaign
  The Balkan Campaign was a series of World War II military operations in southeastern Europe, primarily involving Axis invasions of Yugoslavia and Greece in 1941.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.