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: Thomas Beaufort, Duke of Exeter | Statement: [John of Gaunt, child, Thomas Beaufort, Duke of Exeter]

Target entity: Thomas Beaufort, Duke of Exeter
Context triple: [John of Gaunt, child, Thomas Beaufort, Duke of Exeter]

• A. Thomas Beaufort, Duke of Exeter chosen
  Thomas Beaufort, Duke of Exeter, was an early 15th-century English nobleman, military commander, and half-uncle of King Henry V who played a prominent role in the Hundred Years’ War and royal government.
• B. Edmund Tudor, Duke of Somerset
  Edmund Tudor, Duke of Somerset, was a short-lived English prince of the early Tudor dynasty, known primarily as the younger son of King Henry VII of England and Elizabeth of York.
• C. John Beaufort, 1st Earl of Somerset
  John Beaufort, 1st Earl of Somerset, was an English nobleman and legitimized son of John of Gaunt whose descendants played a key role in the Wars of the Roses and the rise of the Tudor dynasty.
• D. Thomas Cecil, 1st Earl of Exeter
  Thomas Cecil, 1st Earl of Exeter, was an English nobleman, politician, and courtier of the late 16th and early 17th centuries, notable as the eldest son of Queen Elizabeth I’s chief minister William Cecil, Lord Burghley.
• E. Henry Stafford, 2nd Duke of Buckingham
  Henry Stafford, 2nd Duke of Buckingham, was a powerful 15th-century English nobleman and one-time ally of Richard III who later rebelled against him and was executed, and has been historically suspected as a possible culprit in the disappearance of the Princes in the Tower.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.