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: Sybilla of Salisbury | Statement: [William Marshal, 1st Earl of Pembroke, mother, Sybilla of Salisbury]

Target entity: Sybilla of Salisbury
Context triple: [William Marshal, 1st Earl of Pembroke, mother, Sybilla of Salisbury]

• A. Blanche of the Tower
  Blanche of the Tower was a short-lived medieval English princess, the daughter of King Edward III of England and Philippa of Hainault.
• B. Sibylla of Burgundy
  Sibylla of Burgundy was a 12th-century noblewoman who became Queen of Sicily through her marriage to King Roger II.
• C. Maud Bigod
  Maud Bigod was a 12th-century English noblewoman of the powerful Bigod family, notable as the mother of William d’Aubigny, 1st Earl of Arundel.
• D. Eleanor de Bohun
  Eleanor de Bohun was a 14th-century English noblewoman, granddaughter of King Edward I, who became Countess of Ormond and played a notable role in the high aristocracy of medieval England.
• E. Maud of Wales
  Maud of Wales was a British princess who became Queen of Norway as the wife of King Haakon VII.
• 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: Sybilla of Salisbury
Triple: [William Marshal, 1st Earl of Pembroke, mother, Sybilla of Salisbury]

Sybilla of Salisbury was an Anglo-Norman noblewoman best known as the mother of William Marshal, 1st Earl of Pembroke, one of medieval England’s most celebrated knights and statesmen.

Target entity: Sybilla of Salisbury
Target entity description: Sybilla of Salisbury was an Anglo-Norman noblewoman best known as the mother of William Marshal, 1st Earl of Pembroke, one of medieval England’s most celebrated knights and statesmen.

• A. Blanche of the Tower
  Blanche of the Tower was a short-lived medieval English princess, the daughter of King Edward III of England and Philippa of Hainault.
• B. Sibylla of Burgundy
  Sibylla of Burgundy was a 12th-century noblewoman who became Queen of Sicily through her marriage to King Roger II.
• C. Maud Bigod
  Maud Bigod was a 12th-century English noblewoman of the powerful Bigod family, notable as the mother of William d’Aubigny, 1st Earl of Arundel.
• D. Eleanor de Bohun
  Eleanor de Bohun was a 14th-century English noblewoman, granddaughter of King Edward I, who became Countess of Ormond and played a notable role in the high aristocracy of medieval England.
• E. Maud of Wales
  Maud of Wales was a British princess who became Queen of Norway as the wife of King Haakon VII.
• F. None of above. chosen