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Mount Brown had a collection of about 400 stamps but was able to list 1200 different types in his first catalogue with the help of a group of like-minded collectors who met on Saturday afternoons to pool their knowledge .
 person: Mount Brown
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: Mount Brown 
Answer:
 person: Mount Brown