[{'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: VIII. Policy Changes and Amendments Our Privacy Policy may change from time to time. We will post any changes on this page, so please review it periodically. If you do not agree to this policy or any modifications made to it hereafter, please immediately stop use of our application or related services. Your continued use constitutes your acceptance of our policy and any revisions made to it. Please note that none of our employees or agents have the authority to vary the applicability of our policies."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]