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Ajit Singh , a Malaysian diplomat , was the Secretary General of the Association of Southeast Asian Nations from 1993 to 1997 Previously , he had served as Malaysia 's ambassador to Austria , Brazil , Germany and Vietnam .
 person: Ajit Singh; location: Austria; location: Brazil; location: Germany; location: Vietnam
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: Ajit Singh, Austria, Brazil, Germany, Vietnam 
Answer:
 person: Ajit Singh; location: Austria; location: Brazil; location: Germany; location: Vietnam