[{'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: Financial Information: information collected from you as needed to process payments for Groupon vouchers or other products or services that you buy, or as provided by you to administer your participation in optional services and programs, such as your payment card number, expiration date, and card verification number."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]