[{'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: Changes to this Policy This Privacy Policy may be revised from time to time with or without notice. If we make a change in this policy, we will post the latest version on our site: www.leomaster.com. By continuing to access or use the services you agree to be bound by the revised Privacy Policy. If you do not agree to any modifications to this Policy, you should stop using any of all the services."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]