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A lot of the 1970 s-era " outlaw " country music by Willie Nelson and Waylon Jennings also borrowed from the blues .
 person: Willie Nelson; person: Waylon Jennings
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Willie Nelson, Waylon Jennings 
Answer:
 person: Willie Nelson; person: Waylon Jennings