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His father died when he was young ; Benjamin then worked as an apprentice to a tanner in Dorchester near Boston .
 person: Benjamin; location: Dorchester; location: Boston
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: Benjamin, Dorchester, Boston 
Answer:
 person: Benjamin; location: Dorchester; location: Boston