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Schools operated by district Gray-New Gloucester High School Gray-New Gloucester High School is the single high school in the Maine School Administrative District 15 .
 Gloucester, Gloucester, Maine, Administrative, 15
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Gloucester, Gloucester, Maine, Administrative, 15