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: Abdallah ibn Tahir | Statement: [Abbasid governors of Egypt, hasNotableOfficeholder, Abdallah ibn Tahir]

Target entity: Abdallah ibn Tahir
Context triple: [Abbasid governors of Egypt, hasNotableOfficeholder, Abdallah ibn Tahir]

• A. Abdallah ibn Tahir chosen
  Abdallah ibn Tahir was a prominent 9th-century Tahirid governor and military commander who ruled Khurasan on behalf of the Abbasid Caliphate and helped maintain its authority in the eastern provinces.
• B. Muhammad ibn Tahir
  Muhammad ibn Tahir was a 9th-century Tahirid ruler and governor of Khurasan under the Abbasid Caliphate, known for presiding over the dynasty’s decline.
• C. Muhammad al-Shaybani
  Muhammad al-Shaybani was an influential early Islamic jurist and student of Abu Hanifa who played a key role in systematizing and transmitting Hanafi jurisprudence.
• D. Abdallah ibn Muhammad
  Abdallah ibn Muhammad was an Umayyad emir of Córdoba who ruled al-Andalus in the late 9th and early 10th centuries during a period of internal strife and weakening central authority.
• E. Abu al-ʿAbbās ʿAbd Allāh ibn Muḥammad
  Abu al-ʿAbbās ʿAbd Allāh ibn Muḥammad, known by his regnal title As-Saffah, was the founder and first caliph of the Abbasid Caliphate who overthrew the Umayyad dynasty in the mid-8th century.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.