6701
The population of Croatia rose steadily from 2.1 " million in 1857 until 1991 , when it peaked at 4.7 " million , with the exception of censuses taken in 1921 and 1948 , i.e. following two world wars .
 location: Croatia
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: Croatia 
Answer:
 location: Croatia