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Vladimir Dinets is a zoologist and author , known for his studies of Crocodilian behavior and of numerous rare animals in remote parts of the world , as well as for popular writings in Russian and English .
 person: Vladimir Dinets
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: Vladimir Dinets 
Answer:
 person: Vladimir Dinets