17072
In order to resolve the " China incident , " Japan sent in even young boys to fight ; at the height of it , there was only one division left in Japan .
 China, Japan, one, Japan
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: date, organization, person, geographical social political, national religious political, facility, cardinal, location, work of art, law, event, product, ordinal, percent, time, quantity, money, language 
Text: {0} 
Answer:
 China, Japan, one, Japan