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Letta Mbulu  ( born 23 August 1942 in Soweto  South Africa  ) is a South African jazz singer born and raised in Soweto .
 country of birth: Letta Mbulu, South Africa
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 birth: Letta Mbulu, South Africa