[{'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: You will need to have a Google Account in order to purchase books because account information is necessary to provide access to users who bought the book. We limit the information (such as books titles) we provide to credit card companies, and enable you to delete purchased books from your Google Account. However, you will not be able to delete the record of your purchase transaction (including the title of the book) from your Google Payments account history."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]