[{'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: Your acceptance of these terms By using this site or app, you signify your acceptance of this policy. If you do not agree to this policy, please do not use our site or app. Your continued use of the site or app following the posting of changes to this policy will be deemed your acceptance of those changes."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]