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Mel Lindquist discovered spalted wood on his land in the upstate New York Adirondacks in the 1950s and together with his son Mark Lindquist , popularized its use as a material for woodturning and woodworking .
 person: Mel Lindquist; person: Mark 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: Mel Lindquist, Mark Lindquist 
Answer:
 person: Mel Lindquist; person: Mark Lindquist