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Robert Atkinson Westall ( 7 October 1929 – 15 April 1993 ) was a British author , teacher and journalist best known for his children 's fiction , although he also wrote non-fiction and wrote specifically for adults .
 person: Westall
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: Westall 
Answer:
 person: Westall