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The effect was widespread according to Fine Woodworking : " ... Melvin and Mark Lindquist unleashed spalted wood upon the world .... " In addition to his numerous technical innovations , Mel Lindquist is also widely credited for developing an aesthetic foundation for the studio woodturning movement based on translating ancient ceramic ideals into the medium of wood , incorporating bark inclusions and imperfections as decorative elements within the turning integral to design .
 person: Mark Lindquist; person: Mel Lindquist
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: Mark Lindquist, Mel Lindquist 
Answer:
 person: Mark Lindquist; person: Mel Lindquist