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Foundation In 1915 , a Bengali literary magazine named Prabartak was launched under the editorship of Manindra Nath Nayak with the blessings of Motilal Roy and Sri Aurobindo .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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