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

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

• A. 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.
• B. Countess of Pembroke
  The Countess of Pembroke is a historic English noble title traditionally held by high-ranking women connected to the Earls of Pembroke within the English peerage.
• C. 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.
• D. Anne Carr, Countess of Bedford
  Anne Carr, Countess of Bedford was a 17th-century English noblewoman, daughter of the royal favorite Robert Carr, Earl of Somerset, and wife of William Russell, 1st Earl of Bedford.
• E. Anne Throckmorton
  Anne Throckmorton was an English recusant gentlewoman from a prominent Catholic family, best known as the mother of Gunpowder Plot leader Robert Catesby.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"

Entity: Agnes Mortimer, Countess of Pembroke
Triple: [Joan de Geneville, 2nd Baroness Geneville, child, Agnes Mortimer, Countess of Pembroke]

Agnes Mortimer, Countess of Pembroke, was a 14th-century English noblewoman from the powerful Mortimer family who became Countess of Pembroke through marriage and was connected to prominent political figures of the reign of Edward II and Edward III.

Target entity: Agnes Mortimer, Countess of Pembroke
Target entity description: Agnes Mortimer, Countess of Pembroke, was a 14th-century English noblewoman from the powerful Mortimer family who became Countess of Pembroke through marriage and was connected to prominent political figures of the reign of Edward II and Edward III.

• A. 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.
• B. Countess of Pembroke
  The Countess of Pembroke is a historic English noble title traditionally held by high-ranking women connected to the Earls of Pembroke within the English peerage.
• C. 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.
• D. Anne Carr, Countess of Bedford
  Anne Carr, Countess of Bedford was a 17th-century English noblewoman, daughter of the royal favorite Robert Carr, Earl of Somerset, and wife of William Russell, 1st Earl of Bedford.
• E. Anne Throckmorton
  Anne Throckmorton was an English recusant gentlewoman from a prominent Catholic family, best known as the mother of Gunpowder Plot leader Robert Catesby.
• F. None of above. chosen