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: Mahdist Sudan | Statement: [Abdallahi ibn Muhammad, historicalPeriod, Mahdist Sudan]

Target entity: Mahdist Sudan
Context triple: [Abdallahi ibn Muhammad, historicalPeriod, Mahdist Sudan]

• A. Mahdist Sudan chosen
  Mahdist Sudan was a late 19th-century Islamic state in the Sudanese region established by Muhammad Ahmad al-Mahdi after his revolt against Ottoman-Egyptian and British rule.
• B. Adal Sultanate
  The Adal Sultanate was a medieval Muslim Somali-led kingdom in the Horn of Africa that played a major role in regional trade and warfare, particularly in conflicts with the Christian Ethiopian Empire.
• C. Turco-Egyptian Sudan
  Turco-Egyptian Sudan was the 19th-century colonial administration of Sudan jointly controlled by the Ottoman Empire and Egypt, marked by heavy taxation, slave raids, and the conditions that led to the Mahdist uprising.
• D. Wadai Sultanate
  The Wadai Sultanate was a powerful pre-colonial Islamic kingdom in central Africa, centered in what is now eastern Chad, that dominated regional trade and politics from the early modern period until French conquest in the early 20th century.
• E. Sennar State
  Sennar State is a region in southeastern Sudan known for its agricultural economy and historical significance as part of the former Funj Sultanate.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.