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The DAV group has seven branches in Chennai , and it has been rated as the best school in Chennai by the AC Nielsen Ratings .
 location: Chennai; location: Chennai; organization: AC Nielsen
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 location: Chennai; location: Chennai; organization: AC Nielsen