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Biff U. Blumfumgagnge ( born January 17 , 1901 in Milwaukee , Wisconsin ) is an American musician , guitar technician , sound engineer , record producer and instructor of music and recording technology at the Madison Media Institute .
 Biff, Blumfumgagnge, Milwaukee, Wisconsin, American, Madison Media Institute
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Biff, Blumfumgagnge, Milwaukee, Wisconsin, American, Madison Media Institute