[{'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 may from time to time ask you to provide information about your experiences which will be used to measure and improve quality. You are at no time under any obligation to provide any of such data. Any and all information which are voluntarily submitted in feedback forms on the Site, the App or any survey that you accept to take part in is used for the purposes of reviewing this feedback and improving the Elokence software, products and websites."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]