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According to the IBGE , in 2011 , the literacy rate of the population was 90.4 % , meaning that 13 million ( 9.6 % of population ) people are still illiterate in the country ; functional illiteracy has reached 21.6 % of the population .
 organization: IBGE
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: IBGE 
Answer:
 organization: IBGE