[{'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 also track browser type and platform. We use this information to deliver customized information specific to a particular platform and to determine the "mix" of browser types accessing our site. This information helps us make our site operate correctly with your browser.'}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]