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: Siege of Belgrade (1456) | Statement: [Conquest of Belgrade (1521), relatedTo, Siege of Belgrade (1456)]

Target entity: Siege of Belgrade (1456)
Context triple: [Conquest of Belgrade (1521), relatedTo, Siege of Belgrade (1456)]

• A. Siege of Belgrade (1456) chosen
  The Siege of Belgrade (1456) was a pivotal clash in which Hungarian forces under John Hunyadi halted the advance of Sultan Mehmed II’s Ottoman Empire into Central Europe.
• B. Conquest of Belgrade (1521)
  The Conquest of Belgrade (1521) was a decisive Ottoman victory under Sultan Suleiman the Magnificent that captured the key fortress city of Belgrade from the Kingdom of Hungary, opening the way for further Ottoman advances into Central Europe.
• C. Siege of Belgrade (1739)
  The Siege of Belgrade (1739) was a decisive Ottoman victory over the Habsburg Monarchy that led to Austria ceding significant territories and marked the end of the Austro-Turkish War of 1737–1739.
• D. Fall of Belgrade (1440)
  The Fall of Belgrade (1440) was an unsuccessful Ottoman siege of the Hungarian-held fortress city of Belgrade during the reign of Sultan Murad II, marking an early but failed attempt to capture this key strategic stronghold.
• E. Battle of Belgrade (1688)
  The Battle of Belgrade (1688) was a major engagement of the Great Turkish War in which Habsburg forces captured the strategic Ottoman-held city of Belgrade, temporarily shifting the balance of power in the Balkans.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.