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The Big Jump is a science fiction novel by Leigh Brackett , centered around the first manned expedition to Barnard 's Star .
 person: Leigh Brackett
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: Leigh Brackett 
Answer:
 person: Leigh Brackett