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Colonel Stephen Bluck ( born c. 1752 ) led the Black Pioneers during the American Revolution .
 person: Stephen Bluck
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: Stephen Bluck 
Answer:
 person: Stephen Bluck