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German gains were ultimately limited by Hitler diverting forces from the attack on Stalingrad and driving towards the Caucasus oilfields simultaneously .
 person: Hitler; location: Caucasus
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: Hitler, Caucasus 
Answer:
 person: Hitler; location: Caucasus