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His main aim was to express the positive side of surrealism and existentialism , rejecting the negativity and the nihilism of André Breton .
 person: André Breton
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: André Breton 
Answer:
 person: André Breton