4622
The novel was unusual in that , in contrast to most children 's literature of the period , it is set in contemporary Berlin and not in a fairy-tale world .
 location: Berlin
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: Berlin 
Answer:
 location: Berlin