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In 1985 the channel 's controller Michael Grade attempted to cancel the series , but this became an 18-month hiatus instead .
 person: Michael Grade
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: Michael Grade 
Answer:
 person: Michael Grade