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He trained many young pitchers including Billy O'Dell , Jack Fisher , Jim Palmer , Dave McNally , Steve Barber , Chuck Estrada , Jerry Walker and Milt Pappas ; He changed 36-year - old Hoyt Wilhelm into a starter in 1959 .
 person: Billy O'Dell; person: Jack Fisher; person: Jim Palmer; person: Dave McNally; person: Steve Barber; person: Chuck Estrada; person: Jerry Walker; person: Milt Pappas; person: Hoyt Wilhelm
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: Billy O'Dell; person: Jack Fisher; person: Jim Palmer; person: Dave McNally; person: Steve Barber; person: Chuck Estrada; person: Jerry Walker; person: Milt Pappas; person: Hoyt Wilhelm