61983
The population is made up of three major ethnic groups & ndash ; Hutu ( " Bahutu " ) , Tutsi ( " Batutsi " or " Watusi " ) , and Twa ( " Batwa " ) .
 Batutsi, Watusi
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Batutsi, Watusi