[{'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: 4. Updates to this Policy We will update this Privacy Policy from time to time. These updates, will take effect from the date of issue on our website at halfbrick.com. Please check back regularly for updates."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]