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: Thomas of Lancaster | Statement: [Pontefract Castle, notablePrisoner, Thomas of Lancaster]

Target entity: Thomas of Lancaster
Context triple: [Pontefract Castle, notablePrisoner, Thomas of Lancaster]

• A. Lionel of Antwerp, 1st Duke of Clarence
  Lionel of Antwerp, 1st Duke of Clarence, was a 14th-century English prince and nobleman whose lineage played a key role in the later Wars of the Roses through the Yorkist claim to the throne.
• B. Thomas, 2nd Earl of Lancaster chosen
  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.
• C. Edmund of Lancaster
  Edmund of Lancaster was a 13th-century English prince, son of King Henry III, who became a powerful nobleman and military leader as Earl of Lancaster and Leicester.
• D. 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.
• E. Roger Mortimer, 1st Earl of March
  Roger Mortimer, 1st Earl of March, was a powerful 14th-century English nobleman who led the rebellion against King Edward II and effectively ruled England during the early reign of Edward III before being overthrown and executed.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.