[{'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: This Privacy Policy describes what personal information may be shared with CallApp and other users when activating and using CallApp's services, how CallApp receives, collects and uses this data, and how to opt out."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]