[{'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: In addition, as Our Service and user experience are constantly evolving, we may from time to time (and to the extent permitted by applicable law) add, change or remove features or functions from Our Service (including in relation to whether a service is free of charge or not), or suspend or terminate Our Service altogether."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]