99977
" Ubasute " ( 姥捨 , ' abandoning an old woman ' ) , a custom allegedly performed in Japan in the distant past , whereby an infirm or elderly relative was carried to a mountain , or some other remote , desolate place , and left there to die .
 Japan
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 Japan