[{'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: 11. The revision of Private Policy In the case there's any addition, deletion, correction occurred in this private policy, the details of the revision will be posted in the company's homepage, 'Notice' in the service or by an easy way to be recognized at least before 7 days of such case. However, in the event that there any change occurred in the important content of the user's right or responsibility, it will be noticed at least before 30 days of such event."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]