52286
Working during World War II , Kurt Lewin conducted field research initially among Midwestern housewives to determine how to effectively change their families ' food consumption during this time of war .
 person: Kurt Lewin
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: Kurt Lewin 
Answer:
 person: Kurt Lewin