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He soon became an in-demand session pianist and over the years has recorded with numerous artists in a variety of music genres including Bing Crosby , Nancy Sinatra , Dean Martin , Ricky Nelson , Buck Owens , John Denver , Linda Ronstadt , Kenny Rogers , Johnny Rivers , Merle Haggard , Michael Nesmith , Waylon Jennings , and Dwight Yoakam .
 person: Bing Crosby; person: Nancy Sinatra; person: Dean Martin; person: Ricky Nelson; person: Buck Owens; person: John Denver; person: Linda Ronstadt; person: Kenny Rogers; person: Johnny Rivers; person: Merle Haggard; person: Michael Nesmith; person: Waylon Jennings; person: Dwight Yoakam
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 person: Bing Crosby; person: Nancy Sinatra; person: Dean Martin; person: Ricky Nelson; person: Buck Owens; person: John Denver; person: Linda Ronstadt; person: Kenny Rogers; person: Johnny Rivers; person: Merle Haggard; person: Michael Nesmith; person: Waylon Jennings; person: Dwight Yoakam