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Results March : Employees ' participation March : Taxation reform June : Spatial planning June : General tariff June : Unemployment insurance September : Constitutional amendment on broadcasting September : Liability insurance December : Monetary policy December : Price monitoring December : 40-hour working week References
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 None