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 Mortimer, Countess of Pembroke | Statement: [Joan de Geneville, 2nd Baroness Geneville, child, Margaret Mortimer, Countess of Pembroke]

Target entity: Margaret Mortimer, Countess of Pembroke
Context triple: [Joan de Geneville, 2nd Baroness Geneville, child, Margaret Mortimer, Countess of Pembroke]

• A. Margaret of England, Countess of Pembroke
  Margaret of England, Countess of Pembroke, was a 14th-century English princess and noblewoman, notable as a daughter of King Edward III and a member of the influential Plantagenet dynasty.
• B. Margaret Mortimer chosen
  Margaret Mortimer was a medieval English noblewoman of the powerful Mortimer family, daughter of Roger Mortimer, 1st Earl of March, and a figure in the aristocratic networks surrounding the reign of Edward II and Edward III.
• C. Eleanor Mortimer
  Eleanor Mortimer was a medieval English noblewoman of the influential Mortimer family, connected to the Plantagenet royal line.
• D. Eleanor of England, Countess of Pembroke
  Eleanor of England, Countess of Pembroke, was a 13th-century English princess and noblewoman who, through her influential marriage to William Marshal the Younger, became a prominent figure in the politics and aristocracy of the Angevin realm.
• E. Isabel de Clare, 4th Countess of Pembroke
  Isabel de Clare, 4th Countess of Pembroke, was a powerful Anglo-Norman heiress whose vast estates and marriage to William Marshal made her one of the most influential noblewomen in late 12th- and early 13th-century England and Ireland.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.