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However , the team lacked quality pitching , despite Bill Gullickson 's 20 wins in 1991 , and its core of key players began to age , setting the franchise up for decline .
 person: Bill Gullickson
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 person: Bill Gullickson