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He has held positions as Chairperson for Broadcasting for the Media Institute of Southern Africa - Zambia for 2007 – 2008 , and he worked for Radio Icengelo in 2007 .
 Media Institute of Southern Africa
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Media Institute of Southern Africa