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: Pope Sixtus IV | Statement: [Roman Catholic Diocese of Casale Monferrato, establishedBy, Pope Sixtus IV]

Target entity: Pope Sixtus IV
Context triple: [Roman Catholic Diocese of Casale Monferrato, establishedBy, Pope Sixtus IV]

• A. Pope Sixtus IV chosen
  Pope Sixtus IV was a 15th-century head of the Catholic Church known for his influential but controversial papacy, marked by political involvement in Italian affairs, extensive patronage of Renaissance art and architecture (including the Sistine Chapel), and support for measures like the Spanish Inquisition.
• B. Pope Nicholas V
  Pope Nicholas V was a 15th-century head of the Catholic Church and a leading Renaissance humanist who significantly promoted arts, learning, and the restoration of Rome.
• C. Pope Pius II
  Pope Pius II was a 15th-century Renaissance pope, humanist scholar, and former diplomat known for his literary works and efforts to organize a crusade against the Ottoman Empire.
• D. Pope Martin V
  Pope Martin V was the head of the Catholic Church from 1417 to 1431, whose election ended the Western Schism and restored papal authority in Rome.
• E. Pope Alexander VI
  Pope Alexander VI was a controversial late 15th-century pontiff of the Borgia family, known for his political maneuvering and role in arbitrating colonial claims between Spain and Portugal.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.