[{'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: Analytical data collection systems. We use them to create and track statistics regarding your visit and use of the different components of the Site or the Application and to improve the content of the Site, the Application and our services."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]