[{'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: For material changes that impact the collection, use, disclosure or retention of personal information, or for other changes where obtaining your prior consent may be required by applicable law, we will provide notice by sending you an email at the address we have on file for you prior to any changes."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]