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In September 2011 , there were reports that a network security problem on the website of an AMD promo had resulted in the loss of 3 million Dirt 3 keys to the public for use via the Steam platform that have then been posted in various places around the internet .
 None
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:  
Answer:
 None