[{'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: Removed and deleted information may persist in backup copies for up to 30 days to enable restoration, but will not be available to others in the meantime."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]