[{'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: 9. Our Policies Concerning Children Pandora prohibits registration by, and does not knowingly collect personal information from, anyone under 13 years of age. In the event we obtain actual knowledge that we have collected information from children under the age of 13, we will take measures to remove such information from our servers. If you believe that we might have any personal information from a child under 13, please contact our Listener Support team."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]