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: Isabel de Clare, 4th Countess of Pembroke | Statement: [William Marshal, 1st Earl of Pembroke, spouse, Isabel de Clare, 4th Countess of Pembroke]

Target entity: Isabel de Clare, 4th Countess of Pembroke
Context triple: [William Marshal, 1st Earl of Pembroke, spouse, Isabel de Clare, 4th Countess of Pembroke]

• A. Isabel de Clare
  Isabel de Clare was a 13th-century Anglo-Norman noblewoman and heiress from the powerful de Clare family, notable as the mother of Robert de Brus, 6th Lord of Annandale, an ancestor of Robert the Bruce, King of Scots.
• B. Elizabeth de Clare
  Elizabeth de Clare was a 14th-century English noblewoman and wealthy heiress whose endowment helped found and shape Clare College at the University of Cambridge.
• 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. 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. Marie de St Pol, Countess of Pembroke
  Marie de St Pol, Countess of Pembroke, was a 14th-century French noblewoman and English royal consort best known as a prominent patron of learning and religion in England.
• 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: Isabel de Clare, 4th Countess of Pembroke
Triple: [William Marshal, 1st Earl of Pembroke, spouse, 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.

Target entity: Isabel de Clare, 4th Countess of Pembroke
Target entity description: 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.

• A. Isabel de Clare
  Isabel de Clare was a 13th-century Anglo-Norman noblewoman and heiress from the powerful de Clare family, notable as the mother of Robert de Brus, 6th Lord of Annandale, an ancestor of Robert the Bruce, King of Scots.
• B. Elizabeth de Clare
  Elizabeth de Clare was a 14th-century English noblewoman and wealthy heiress whose endowment helped found and shape Clare College at the University of Cambridge.
• 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. 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. Marie de St Pol, Countess of Pembroke
  Marie de St Pol, Countess of Pembroke, was a 14th-century French noblewoman and English royal consort best known as a prominent patron of learning and religion in England.
• F. None of above. chosen