[{'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: CHILDREN PRIVACY Start is not intended for children under the age of 13 years, and we do not knowingly obtain personal information from children under the age of 13 years without parental consent. If we learn that we have collected such information, we will delete it as quickly as possible. If you are aware of any personal information in our possession which may relate to children under the age of 13 years, please contact us at: privacy@celltick.com."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]