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: Arthur I, Duke of Brittany | Statement: [Eleanor, Fair Maid of Brittany, sibling, Arthur I, Duke of Brittany]

Target entity: Arthur I, Duke of Brittany
Context triple: [Eleanor, Fair Maid of Brittany, sibling, Arthur I, Duke of Brittany]

• A. Arthur II, Duke of Brittany
  Arthur II, Duke of Brittany was a late 13th- and early 14th-century Breton ruler from the House of Dreux who governed the Duchy of Brittany under French suzerainty and navigated complex feudal and dynastic politics of medieval France.
• B. Arthur III, Duke of Brittany
  Arthur III, Duke of Brittany was a 15th-century Breton nobleman and military leader who served as Constable of France and played a key role in the later stages of the Hundred Years’ War.
• C. Prince Arthur, Duke of Brittany chosen
  Prince Arthur, Duke of Brittany was the nephew of King John of England and a Plantagenet prince whose disputed claim to the English throne and mysterious early death made him a notable figure in medieval English history.
• D. Louis, Duke of Brittany
  Louis, Duke of Brittany was a short-lived French prince of the House of Valois, grandson of King Louis XI and one of the heirs apparent to the French throne in the late 15th century.
• E. John I, Duke of Brittany
  John I, Duke of Brittany was a 13th-century Breton nobleman who ruled the Duchy of Brittany and played a significant role in the politics of medieval France.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.