[{'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 35 We may change this Privacy Policy from time to time. If we do, we will let you know by revising the date at the top of the policy. If we make a change to this policy that, in our sole discretion, is material, we will provide you with additional notice (such as adding a statement to r/announcements, the front page of the Services or sending you a notification). We encourage you to review the Privacy Policy whenever you access or use our Services or otherwise interact with us to stay informed about our information practices and the ways you can help protect your privacy. If you continue to use our Services after Privacy Policy changes go into effect, you consent to the revised policy."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]