[{'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: to allow you to participate in voluntary surveys about our products and services. If you choose to participate in a survey, we may request certain Personal Information from you. We may use a third party service provider to conduct these surveys; we will prohibit them from using your Personal Information for any purpose other than to complete the survey."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]