[{'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: Persons under the age of 18 should not transfer personal information to us unless they have the consent of their parent(s) or guardian(s). Except for children of Avast employees, we do not knowingly collect, nor do we want to receive, personal information about individuals who are under 13 years of age."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]