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The Biafran War has exercised a powerful hold over Nigeria 's literary imagination , animating almost every notable Nigerian writer from Chinua Achebe , Wole Soyinka and Christopher Okigbo to Flora Nwapa , Buchi Emecheta and Ken Saro-Wiwa .
 nationality: Flora Nwapa, Nigeria; nationality: Christopher Okigbo, Nigeria; nationality: Chinua Achebe, Nigeria; nationality: Wole Soyinka, Nigeria; nationality: Ken Saro-Wiwa, Nigeria; nationality: Buchi Emecheta, Nigeria
Given a phrase that describes the relationship between two words, extract the words and the lexical relationship between them. The output format should be "relation1: word1, word2; relation2: word3, word4". 
Option: ethnicity, place lived, geographic distribution, company industry, country of administrative divisions, administrative division of country, location contains, person of company, profession, ethnicity of people, company shareholder among major shareholders, sports team of location, religion, neighborhood of, company major shareholders, place of death, nationality, children, company founders, company founded place, country of capital, company advisors, sports team location of teams, place of birth 
Text: {0} 
Answer:
 nationality: Flora Nwapa, Nigeria; nationality: Christopher Okigbo, Nigeria; nationality: Chinua Achebe, Nigeria; nationality: Wole Soyinka, Nigeria; nationality: Ken Saro-Wiwa, Nigeria; nationality: Buchi Emecheta, Nigeria