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: Mary of Waltham | Statement: [Thomas of Windsor, sibling, Mary of Waltham]

Target entity: Mary of Waltham
Context triple: [Thomas of Windsor, sibling, Mary of Waltham]

• A. Mary of Waltham chosen
  Mary of Waltham was a 14th-century English princess, the daughter of King Edward III and Philippa of Hainault, who was betrothed in childhood to John V, Duke of Brittany, but died young before fully assuming her role.
• B. Margaret of Huntingdon
  Margaret of Huntingdon was a 12th-century Scottish noblewoman and princess, daughter of Henry of Scotland and granddaughter of King David I of Scotland, who became an important dynastic figure through her influential marriages.
• C. Matilda of Lancaster
  Matilda of Lancaster was a 14th-century English noblewoman of the royal House of Lancaster who became Countess of Ulster through marriage and was connected to the Welsh prince Dafydd ap Gruffudd by family ties.
• D. Mabel of Gloucester
  Mabel of Gloucester was a 12th-century Anglo-Norman noblewoman of the powerful Gloucester family, notable as the daughter and heiress of Robert, 1st Earl of Gloucester, and a key figure in aristocratic alliances of her time.
• E. Philippa of Clarence
  Philippa of Clarence was a 14th-century English noblewoman, granddaughter of King Edward III, whose lineage played a key role in the dynastic claims leading to the Wars of the Roses.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.