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The villanelle has been used regularly in the English language since the late 19th century by such poets as Dylan Thomas , W. H. Auden , and Elizabeth Bishop .
 Dylan Thomas, W. H. Auden, Elizabeth Bishop
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Dylan Thomas, W. H. Auden, Elizabeth Bishop