84202
He launched an offensive against the Russians in the Caucasus in December 1914 with 100,000 troops , insisting on a frontal attack against mountainous Russian positions in winter .
 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: Caucasus 
Answer:
 location: Caucasus