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Masters of Time is a collection of two science fiction novellas by author A. E. van Vogt .
 person: A. E. van Vogt
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: A. E. van Vogt 
Answer:
 person: A. E. van Vogt