106679
Caribbean On 26 October 1806 , Tsar Alexander I of Russia declared war on Great Britain .
 person: Alexander I of Russia
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: Alexander I of Russia 
Answer:
 person: Alexander I of Russia