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Walter Lappert , ( 22 March 1921 - 1 September 2003 ) at the age of 61 , founded a business in Kauai to manufacture and sell " super-premium " ice cream based on family recipes from his European upbringing .
 person: Walter Lappert
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: Walter Lappert 
Answer:
 person: Walter Lappert