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He was a very close friend of Marcel Proust who found in him and his fiancée , Jeanne Pouquet , a model of the relationship between Robert de Saint-Loup and Gilberte in his famous novel In Search of Lost Time .
 person: Marcel Proust
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: Marcel Proust 
Answer:
 person: Marcel Proust