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A state police spokeswoman said there were reports of minor injuries as a result of the derailment near Roxbury , a small town on the edge of the Northfield Mountains some 15 miles southwest of Montpelier , the state capital .
 Montpelier, Roxbury, Northfield Mountains
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, else, organization, person 
Text: {0} 
Answer:
 Montpelier, Roxbury, Northfield Mountains