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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 .
 location: Soweto; location: Johannesburg; person: Mandela; person: Walter; person: Albertina Sisulu
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Soweto, Johannesburg, Mandela, Walter, Albertina Sisulu 
Answer:
 location: Soweto; location: Johannesburg; person: Mandela; person: Walter; person: Albertina Sisulu