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Krafft became an orphan at an early age and came to his uncle 's studio in Stockholm in 1675 as his assistant and apprentice .
 person: Krafft
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: Krafft 
Answer:
 person: Krafft