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One reason for the Sānatsujātiyas importance is that it was commented upon by Adi Shankara , the preeminent expositor of Advaita Vedanta , and one of the most important Hindu sages , philosophers , and mystics .
 person: Adi Shankara
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:
 person: Adi Shankara