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: Katherine Swynford | Statement: [John of Gaunt, spouse, Katherine Swynford]

Target entity: Katherine Swynford
Context triple: [John of Gaunt, spouse, Katherine Swynford]

• A. Thomasine Clopton
  Thomasine Clopton was the first wife of John Winthrop, the future Puritan leader and governor of the Massachusetts Bay Colony, and a member of an English gentry family.
• B. Elizabeth Blount
  Elizabeth Blount was an English noblewoman best known as a mistress of King Henry VIII and the mother of his acknowledged illegitimate son, Henry FitzRoy.
• C. Philippa of Lancaster
  Philippa of Lancaster was an English-born queen consort of Portugal from the House of Lancaster, whose marriage to King John I helped solidify the Anglo-Portuguese alliance and produced several influential royal children, including Henry the Navigator.
• D. Blanche of Lancaster
  Blanche of Lancaster was a 14th-century English noblewoman, heiress, and first wife of John of Gaunt, whose inheritance helped lay the foundations of the Lancastrian branch of the English royal family.
• E. Catherine of Valois
  Catherine of Valois was a French princess and Queen of England as the wife of Henry V, best known as the mother of Henry VI and ancestress of the Tudor dynasty through her later marriage to Owen Tudor.
• 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: Katherine Swynford
Triple: [John of Gaunt, spouse, Katherine Swynford]

Katherine Swynford was the longtime mistress and later third wife of John of Gaunt, whose legitimized Beaufort children became influential ancestors of the English royal House of Tudor.

Target entity: Katherine Swynford
Target entity description: Katherine Swynford was the longtime mistress and later third wife of John of Gaunt, whose legitimized Beaufort children became influential ancestors of the English royal House of Tudor.

• A. Thomasine Clopton
  Thomasine Clopton was the first wife of John Winthrop, the future Puritan leader and governor of the Massachusetts Bay Colony, and a member of an English gentry family.
• B. Elizabeth Blount
  Elizabeth Blount was an English noblewoman best known as a mistress of King Henry VIII and the mother of his acknowledged illegitimate son, Henry FitzRoy.
• C. Philippa of Lancaster
  Philippa of Lancaster was an English-born queen consort of Portugal from the House of Lancaster, whose marriage to King John I helped solidify the Anglo-Portuguese alliance and produced several influential royal children, including Henry the Navigator.
• D. Blanche of Lancaster
  Blanche of Lancaster was a 14th-century English noblewoman, heiress, and first wife of John of Gaunt, whose inheritance helped lay the foundations of the Lancastrian branch of the English royal family.
• E. Catherine of Valois
  Catherine of Valois was a French princess and Queen of England as the wife of Henry V, best known as the mother of Henry VI and ancestress of the Tudor dynasty through her later marriage to Owen Tudor.
• F. None of above. chosen