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Sprague taught elementary school in Potsdam , New York and later opened a school in Zanesville , Ohio .
 Sprague, Potsdam , New York, Zanesville , Ohio
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Sprague, Potsdam , New York, Zanesville , Ohio