312746
Roger Nilsson ( born April 19 , 1973 ) a Swedish bass-player best known for his work with The Quill , Spiritual Beggars , Arch Enemy and Firebird .
 Roger Nilsson
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Roger Nilsson