[{'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: You can add or update certain information on pages such as those referenced in the Which Information Can I Access? section. When you update information, we usually keep a copy of the prior version for our records."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]