[{'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: By using Groupon, you represent that you are at least eighteen years old and understand that you must be at least eighteen years old in order to create an account and purchase the goods or services advertised through the Site. We will promptly delete information associated with any account we obtain actual knowledge is associated with a registered user who is not at least eighteen years old."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]