[{'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: 10. Changes to the policy The privacy policy and this summary may change over time. We will post the updated privacy policy on this page. Please come back to this page every now and then to make sure you are familiar with the latest version. Any new policy will be effective from the date it is published by us."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]