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: Edmund Mortimer, 1st Earl of March | Statement: [Beatrice Mortimer, sibling, Edmund Mortimer, 1st Earl of March]

Target entity: Edmund Mortimer, 1st Earl of March
Context triple: [Beatrice Mortimer, sibling, Edmund Mortimer, 1st Earl of March]

• A. Edmund Mortimer chosen
  Edmund Mortimer was an English nobleman of the late 14th and early 15th centuries, notable for his disputed claim to the English throne and his involvement in the political conflicts surrounding the reign of Henry IV.
• B. 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.
• C. 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.
• D. Roger Mortimer, 4th Earl of March
  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.
• E. Roger Mortimer (2nd Earl of March)
  Roger Mortimer, 2nd Earl of March, was a prominent 14th-century English nobleman and Marcher lord who played a key role in the politics of the reign of Richard II before dying young in 1398.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.