[{'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 Our Privacy Policy may change which will not reduce your rights under this Privacy Policy from time to time, we will post any privacy policy changes on this page, so please review it periodically. If you do not agree to any modifications to this Policy, your could immediately stop all use of all the Services. Your continued use of the Site following the posting of any modifications to this Policy will constitute your acceptance of the revised Policy. Please note that none of our employees or agents has the authority to vary any of our Policies."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]