[{'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: provide you the opportunity to participate in contests or surveys on our Service. Participation in these surveys or contests is completely voluntary. If you participate, we will request certain personal information from you and we may use the information you provide to administer those programs."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]