98258
Britain , Australia and New Zealand were given a joint League of Nations Mandate over Nauru in 1920 , but the island was administered by Australia .
 location: Nauru
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: Nauru 
Answer:
 location: Nauru