136891
In 1941 , he was assigned to Einsatzgruppe B as a Russian interpreter .
 organization: Einsatzgruppe B
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: Einsatzgruppe B 
Answer:
 organization: Einsatzgruppe B