[{'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: H. Contests, Sweepstakes and Surveys. In order to participate in certain contests, sweepstakes or surveys, there may be a separate registration process which may require the submission of both PII and NPII. We will use the Information you provide for the purpose of conducting the promotion (for example, to contact you if you have won). You may also have the opportunity to opt-in to receive special Promotions or offers from our advertisers as a result of your use of our Products and Services."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]