23858
In Japan the practice of keeping horned rhinoceros beetles ( Dynastinae ) and stag beetles ( Lucanidae ) is particularly popular amongst young boys .
 location: Japan
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: Japan 
Answer:
 location: Japan