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Notably , Nelson Mandela and other Nobel laureates Nadine Gordimer , Archbishop Desmond Tutu , and F. W. de Klerk have expressed disappointment with the bill for not meeting standards of constitutionality and aspirations for freedom of information and expression .
 Nelson Mandela, Nadine Gordimer, Desmond Tutu, F. W. de Klerk
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Nelson Mandela, Nadine Gordimer, Desmond Tutu, F. W. de Klerk