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Vasantha Maligai ( ) is a 1972 Tamil film , directed by K.S. Prakash Rao .
 person: K.S. Prakash Rao
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: K.S. Prakash Rao 
Answer:
 person: K.S. Prakash Rao