[{'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: Please note that all sites that are directed to children under the age of 13 are prohibited by COPPA from conditioning a child's participation in an online activity on the child's disclosure of more personal information than is reasonably necessary to participate in the activity."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]