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Of all his works , his elegy for Lester Young , " Goodbye Pork Pie Hat " ( from " Mingus Ah Um " ) has probably had the most recordings .
 Lester Young
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Lester Young