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Eskdale In nearby Eskdale , the National Trust owns over 70 square kilometres ( 27 mile ² ) and eleven farms are protected with extensive areas of fell and Hardknott Roman Fort , which is maintained by English Heritage .
 Eskdale, Eskdale, Trust, English Heritage
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
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 Eskdale, Eskdale, Trust, English Heritage