[{'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: Age Requirement The Site will not knowingly collect, use or retain personally identifiable information from anyone under the age of 13, for any purpose whatsoever (including internal or external marketing or promotional purposes). If you are under the age of 13, you will need your parent or guardian's consent before you can provide any personal information to us for purposes of registration and other online activities and by registering to this site we believe that you have taken required consents from your Parents / Guardian."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]