136759
In some cases , celebrants assist traditional priests , known as yatiri s in Aymara , in performing ancient rites to bring good luck or the good will of the goddess , such as sacrificing guinea pigs or burning llama foetuses ( although this is no longer common ) .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 None