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: Nigerian Civil War | Statement: [There Was a Country, mainSubject, Nigerian Civil War]

Target entity: Nigerian Civil War
Context triple: [There Was a Country, mainSubject, Nigerian Civil War]

• A. Biafran secession chosen
  Biafran secession was the attempt by the predominantly Igbo eastern region of Nigeria to break away and form the independent Republic of Biafra between 1967 and 1970, leading to a devastating civil war.
• B. Niger Delta conflict
  The Niger Delta conflict is a long-running struggle in southern Nigeria involving militant groups, local communities, the government, and oil companies over resource control, environmental degradation, and political marginalization in the oil-rich region.
• C. Aba Women’s War
  Aba Women’s War was a major 1929 anti-colonial uprising in southeastern Nigeria led by Igbo women protesting British taxation and colonial administrative policies.
• D. Angolan Civil War
  The Angolan Civil War was a protracted Cold War–era conflict in Angola (1975–2002) involving rival liberation movements and extensive foreign intervention, including Cuban, Soviet, South African, and U.S. support to opposing sides.
• E. Liberian Civil Wars
  The Liberian Civil Wars were two consecutive brutal conflicts from 1989 to 2003 that devastated Liberia, caused massive civilian casualties and displacement, and reshaped the country’s political landscape.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.