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: Richard of Conisburgh, 3rd Earl of Cambridge | Statement: [Constance of York, sibling, Richard of Conisburgh, 3rd Earl of Cambridge]

Target entity: Richard of Conisburgh, 3rd Earl of Cambridge
Context triple: [Constance of York, sibling, Richard of Conisburgh, 3rd Earl of Cambridge]

• A. Richard of Conisburgh, 3rd Earl of Cambridge chosen
  Richard of Conisburgh, 3rd Earl of Cambridge, was an English nobleman executed for his role in the Southampton Plot against King Henry V and remembered as the father of Richard, Duke of York, whose claim helped spark the Wars of the Roses.
• B. Humphrey Stafford, Duke of Buckingham
  Humphrey Stafford, Duke of Buckingham, was a powerful 15th-century English nobleman and military leader who played a prominent role in the early stages of the Wars of the Roses.
• C. Henry Stafford, 2nd Duke of Buckingham
  Henry Stafford, 2nd Duke of Buckingham, was a powerful 15th-century English nobleman and one-time ally of Richard III who later rebelled against him and was executed, and has been historically suspected as a possible culprit in the disappearance of the Princes in the Tower.
• D. Henry Grey, 12th Earl of Kent
  Henry Grey, 12th Earl of Kent, was an English nobleman of the early 18th century who held the earldom of Kent within the prominent Grey family.
• E. Henry Grey, 10th Earl of Kent
  Henry Grey, 10th Earl of Kent, was an English nobleman of the early 17th century who held the earldom of Kent and belonged to the prominent Grey aristocratic family.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.