[{'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: When you use the Service to take an examination in the Duolingo English Test you must provide access to your computer\'s webcam and microphone. We will use them to record you during the entire examination period ("Testing Video"). We store this recording to validate that you took the examination without improper assistance. While using the Duolingo English Test you will submit answers to questions and other information as part of the testing and evaluation process. We will store that information and use it to evaluate your performance on the test, to report results and to evaluate the usefulness, accuracy and other aspects of the Duolingo English Test.'}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]