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The circumstances of Leonid 's death remain obscure and controversial , as none of his fellow fliers stated that they witnessed him being shot down , nor was his plane found or body recovered .
 person: Leonid
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 person: Leonid