[{'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: KAKAO may amend this Privacy Policy to, for example, reflect changes to the Services or applicable law. We will post a notice about any Privacy Policy changes, and the updated Privacy Policy will become effective 7 days from the day on which the notice is posted. However, if changes to our Privacy Policy materially affect your rights due to unavoidable reasons, we will give you a 30-day prior notice."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]