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Swansea Bay , Mumbles and Gower are home to various parks and gardens and almost 20 nature reserves .
 Swansea Bay, Mumbles, Gower
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Swansea Bay, Mumbles, Gower