18593
According to the 2011 population census , 2,765,610 or 98.767 % of the population declared Albanian as their mother tongue ( " mother tongue is defined as the first or main language spoken at home during childhood " ) .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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