91932
The most notorious scandal followed an incident in Rostov-on-Don on 20 May 2004 .
 location: Rostov-on-Don
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: Rostov-on-Don 
Answer:
 location: Rostov-on-Don