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: John of Gaunt, 1st Duke of Lancaster | Statement: [Constance of Castile, Duchess of Lancaster, spouse, John of Gaunt, 1st Duke of Lancaster]

Target entity: John of Gaunt, 1st Duke of Lancaster
Context triple: [Constance of Castile, Duchess of Lancaster, spouse, John of Gaunt, 1st Duke of Lancaster]

• A. John of Gaunt chosen
  John of Gaunt was a powerful 14th-century English prince and statesman, Duke of Lancaster, whose influence shaped the politics of the late medieval English monarchy.
• B. Henry, 3rd Earl of Lancaster
  Henry, 3rd Earl of Lancaster was a prominent 14th-century English nobleman and royal cousin who played a key role in the politics of Edward II and Edward III’s reigns, notably in the opposition to Edward II and the early governance of Edward III.
• C. Thomas, 2nd Earl of Lancaster
  Thomas, 2nd Earl of Lancaster was a powerful English nobleman and cousin to King Edward II who led baronial opposition to the king and was eventually executed for his role in the rebellion.
• D. Edmund Crouchback, 1st Earl of Lancaster
  Edmund Crouchback, 1st Earl of Lancaster, was a 13th-century English prince and military leader who became a powerful noble through extensive landholdings and royal favor, founding the House of Lancaster.
• E. Humphrey of Lancaster
  Humphrey of Lancaster, also known as Humphrey, Duke of Gloucester, was a 15th-century English prince, soldier, and influential patron of learning who played a key role during the Hundred Years’ War and the minority of Henry VI.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.