[{'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: Return to top How to contact Facebook with questions To learn more about how privacy works on Facebook, please check out Privacy Basics. If you have questions about this policy, here's how you can reach us: If you live in the US or Canada… Please contact Facebook, Inc. online or by mail at: Facebook, Inc."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]