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: Margaret Beaufort, Countess of Stafford | Statement: [Henry Stafford, 2nd Duke of Buckingham, relative, Margaret Beaufort, Countess of Stafford]

Target entity: Margaret Beaufort, Countess of Stafford
Context triple: [Henry Stafford, 2nd Duke of Buckingham, relative, Margaret Beaufort, Countess of Stafford]

• A. Margaret Beaufort, Countess of Stafford chosen
  Margaret Beaufort, Countess of Stafford, was a 15th-century English noblewoman of the Beaufort family and the mother of Henry Stafford, 2nd Duke of Buckingham, who played a notable role in the politics of the Wars of the Roses.
• B. Margaret Beaufort
  Margaret Beaufort was an influential English noblewoman and political strategist of the late 15th century, best known as the mother of King Henry VII and a key architect of the Tudor dynasty.
• C. Mary Beaufort
  Mary Beaufort is a notable member of the historically significant Beaufort family, a prominent English noble lineage connected to the House of Lancaster.
• D. Elizabeth Grey, Countess Grey
  Elizabeth Grey, Countess Grey, was a British aristocrat best known as the mother of Charles Grey, 2nd Earl Grey, the Whig prime minister after whom Earl Grey tea is named.
• E. Margaret Neville
  Margaret Neville was an English noblewoman of the late 14th and early 15th centuries, a member of the influential Neville family and the wife of Thomas Beaufort, Duke of Exeter.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.