4811
The majority of local residents speak Somali ( 303,100 speakers ) or Afar ( 101,200 speakers ) as a first language , which are the mother tongues of the Somali and Afar ethnic groups , respectively .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 None