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Saturday is referred to as Hagas sain ödör ( translation : half-good day ) , and Sunday is referred to as Büten sain ödör ( translation : full good day ) , a result of 5 full working days and Saturday as a half working day during the communist era .
 communist era
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 communist era