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Moving to Soweto , Johannesburg , she met Mandela through family friends Walter and Albertina Sisulu , subsequently marrying him at the Native Commissioner 's Court .
 Soweto, Johannesburg, Mandela, Walter, Albertina Sisulu
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Soweto, Johannesburg, Mandela, Walter, Albertina Sisulu