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: Roger Mortimer, 4th Earl of March | Statement: [Philippa, 5th Countess of Ulster, child, Roger Mortimer, 4th Earl of March]

Target entity: Roger Mortimer, 4th Earl of March
Context triple: [Philippa, 5th Countess of Ulster, child, Roger Mortimer, 4th Earl of March]

• A. Roger Mortimer, 4th Earl of March chosen
  Roger Mortimer, 4th Earl of March was a prominent late 14th-century English nobleman and heir presumptive to King Richard II, whose lineage played a key role in the Yorkist claim to the English throne.
• B. 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.
• C. Roger Mortimer of Wigmore
  Roger Mortimer of Wigmore was a powerful 13th–14th century English Marcher lord and military commander, notable as the father of Roger Mortimer, 1st Earl of March, and a key figure in the politics of the Welsh borderlands.
• D. 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.
• E. Edmund Mortimer, 2nd Baron Mortimer
  Edmund Mortimer, 2nd Baron Mortimer, was a prominent 13th-century English nobleman and Marcher lord who expanded the Mortimer family’s power along the Welsh border through military service and strategic alliances.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.