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Inktel is a global outsourcer of business services and direct marketing services , most notably including Fulfillment ( as well as inventory management and order processing ) and Call Center services , but also including other services such as Direct Mail / Lettershop , E-commerce , Data Management , Social Media and Graphic Design .
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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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