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In response to complaints during its first week that finding games to support was made difficult by a flood of inappropriate or false submissions , Valve required developers to pay to list a game on the service to reduce illegitimate submissions .
 organization: Valve
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 organization: Valve