[{'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: We use the Google Analytics' service, if you do not wish for Google Analytics to collect or use your information, you can unsubscribe at the following page: https://tools.google.com/dlpage/gaoptout?hl=en"}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]