[{'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: 13. Users Under 13 Lookout does not knowingly collect or store any personal information about children under the age of 13. If you believe a child is using this service without parental consent, please contact us at privacy@lookout.com."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]