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Chennai Sangamam ( Tamil : சென்னை சங்கமம் ) is a large annual open Tamil cultural festival held in the city of Chennai .
 location: Chennai; location: Tamil; location: Tamil; location: Chennai
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: Chennai, Tamil, Tamil, Chennai 
Answer:
 location: Chennai; location: Tamil; location: Tamil; location: Chennai