55950
Recent studies indicate that one in every 2,500 children in the Navajo population inherit severe combined immunodeficiency .
 location: Navajo
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: Navajo 
Answer:
 location: Navajo