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Although Academia Mihăileană no longer provided faculty courses after 1847 , it was not legally abolished , and temporarily suspended its activity ( during a time of political turmoil caused by the frequent Ottoman - Russian clashes on Moldavia 's soil , and the periods of Russian occupation ) .
 Academia Mihăileană, Ottoman, Russian
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Academia Mihăileană, Ottoman, Russian