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: Western Schism | Statement: [Amadeus VIII, Duke of Savoy, conflict, Western Schism]

Target entity: Western Schism
Context triple: [Amadeus VIII, Duke of Savoy, conflict, Western Schism]

• A. Western Schism chosen
  The Western Schism was a prolonged split within the Catholic Church (1378–1417) during which multiple rival claimants to the papacy simultaneously asserted their legitimacy, deeply dividing Christendom.
• B. East–West Schism
  The East–West Schism was the 1054 split between the Roman Catholic and Eastern Orthodox Churches, driven by long-standing theological, political, and cultural disputes that permanently divided Western and Eastern Christianity.
• C. Investiture Controversy
  The Investiture Controversy was an 11th–12th century power struggle between the papacy and secular rulers over who held the authority to appoint bishops and other high church officials.
• D. Avignon Papacy
  The Avignon Papacy was a period in the 14th century when the popes resided in Avignon rather than Rome, significantly shaping medieval church politics and contributing to later crises like the Western Schism.
• E. Photian Schism
  The Photian Schism was a 9th-century ecclesiastical dispute between the Eastern and Western Christian churches centered on the contested patriarchate of Constantinople and papal authority, foreshadowing the later East–West Schism.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.