90191
In certain species , the internal organs , such as the liver , and sometimes their skin , contain tetrodotoxin and are highly toxic to most animals when eaten ; nevertheless , the meat of some species is considered a delicacy in Japan ( as 河豚 , pronounced " fugu " ) , Korea ( as 복 , " bok " , or 복어 , " bogeo " ) , and China ( as 河豚 , " hétún " ) when prepared by specially trained chefs who know which part is safe to eat and in what quantity .
 Japan, fugu, Korea, China
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, fugu, Korea, China