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The club chairman in 2012 is Pekka Huhta and the former chairmen are Lauri Walden , Jarkko Koskela , Jussi Vyyryläinen , Arto Nummivaara , Riku Auvinen , Petri Godenhjelm , and Timo Walden .
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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:
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