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: Northern Nigerian emirate system | Statement: [Emir of Kano, partOf, Northern Nigerian emirate system]

Target entity: Northern Nigerian emirate system
Context triple: [Emir of Kano, partOf, Northern Nigerian emirate system]

• A. Kano Emirate (pre-jihad Hausa state)
  The Kano Emirate (pre-jihad Hausa state) was a powerful and long-standing Hausa kingdom centered on the city of Kano in what is now northern Nigeria, known for its thriving trans-Saharan trade, Islamic scholarship, and sophisticated urban culture before its incorporation into the Sokoto Caliphate.
• B. Hausa city-states
  The Hausa city-states were a network of powerful, walled urban centers in what is now northern Nigeria and surrounding regions, known for their role as hubs of trans-Saharan trade, Islamic scholarship, and Hausa culture before colonial rule.
• C. Zaria Emirate
  Zaria Emirate is a traditional Hausa-Fulani Islamic state and emirate in northern Nigeria, historically subordinate to the Sokoto Caliphate and centered around the ancient city of Zaria (Zazzau).
• D. Sokoto Caliphate
  The Sokoto Caliphate was a powerful 19th-century Islamic empire in West Africa that became a major center of Islamic learning, governance, and trade.
• E. Northern Nigeria chosen
  Northern Nigeria is the predominantly Muslim, Hausa-Fulani–dominated northern part of Nigeria, known for its distinct cultural, religious, and historical identity within the country.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.