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In conjunction with developers and publishers , Valve frequently provides discounted sales on games on a daily and weekly basis , sometimes oriented around a publisher , genre , or holiday theme , and sometimes allow games to be tried for free during the days of these sales .
 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