37871
Among the passengers was the sultan of Sokoto , Muhammadu Maccido , the spiritual leader since 1996 of Nigeria 's Muslims , who are believed to constitute half of the country 's estimated population of 130 million . ''
 Nigeria, Sokoto
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; 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:
 Nigeria, Sokoto