297756
There is speculation that the Peking Union Medical College researchers were involved in analyzing biomedical warfare agents on behalf of the United States using data from the Japanese biomedical warfare in China .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities:  
Answer:
 None