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Jake Thomas Howells ( born 18 April 1991 , Hemel Hempstead , England ) is a Wales under-21 international footballer who plays for Luton Town .
 Jake, Howells, Hemel Hempstead, Wales, Luton Town
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Jake, Howells, Hemel Hempstead, Wales, Luton Town