[{'role': 'user', 'content': "Analyze the following clause from a privacy policy and determine if it's fair or unfair. Also identify any privacy practices mentioned: Other changes will take effect 7 days after their initial posting on the Website. However, if Waze amends this Privacy Policy to comply with legal requirements, the amendments will become effective immediately upon their initial posting, or as required."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]