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Doulting Stone Quarry is a limestone quarry at Doulting , on the Mendip Hills , Somerset , England .
 Doulting, Doulting, Somerset, England
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Doulting, Doulting, Somerset, England