[{'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: 7. You may not forge headers or otherwise manipulate identifiers in order to disguise the origin of any message or transmittal you send to us on or through the App or any service offered on or through the App. You may not pretend that you are, or that you represent, someone else, or impersonate any other individual or entity or access the App through another user's account, unless authorized to do so."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]