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Steve Litchfield is a writer , editor and presenter , best known for his work in the mobile industry for publications like " All About Symbian " , " Smartphone Essentials magazine " and the podcasts " The Phones Show " and " Phones Show Chat " .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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