[{'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 To This Privacy Policy By using this Application, you agree to this Privacy Policy. We reserve the right to change, modify or amend this Privacy Policy at any time. Any revised Privacy Policy will only apply prospectively to Personal Information collected or modified after the effective date of the revised policy."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]