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Abubakar Tafawa Balewa  University ( ATBU ) is a federal university of technology located in Bauchi northern  Nigeria  .
 country of headquarters: Abubakar Tafawa Balewa, 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: cities of residence, top members employees, members, alternate names, origin, state or provinces of residence, title of person, spouse, city of headquarters, NA, founded by, state or province of headquarters, employee of, countries of residence, country of birth, founded, subsidiaries, country of headquarters 
Text: {0} 
Answer:
 country of headquarters: Abubakar Tafawa Balewa, Nigeria