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It began on 10 June at Motorsport Arena Oschersleben and finished on 21 September at Sachsenring after seven double-header meetings .
 organization: Motorsport Arena Oschersleben; location: Sachsenring
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: Motorsport Arena Oschersleben; location: Sachsenring