[{'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: Public Forums and Chat Features You should be aware that any personal information you choose to share within public forums or chat features offered on the site may be read, collected and used by others who access them. To request removal of your personal information from publically available areas of the site, contact us at privacy.officer@lego.com. In some cases, we may not be able to remove your personal information, in which case we will let you know if we are unable to do so and why. Please note that users under 13 may not use these areas of the site until consent has been provided by their parent or legal guardian."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]