[{'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: 12. Children The Services are not intended for use by children under the age of 13. We do not knowingly collect (or knowingly allow any third party to collect) personal information from persons under the age of 13. If we become aware that personal information has been collected from a person under the age of 13, we will delete this information and terminate the person's account as quickly as possible. If you believe that we may have personal information from or about a child under the age of 13, please contact us using the contact information below."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]