[{'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: Once you make a public posting, you may not be able to change or remove it. Upon your request, we will close your account and remove your personal information from view as soon as reasonably possible, based on your account activity and in accordance with applicable national laws"}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]