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Mynydd Fforest ( Forested Mountain ) is a hill about two miles northwest of Llyswen in the county of Powys in Wales .
 Llyswen, Powys, Wales
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Llyswen, Powys, Wales