[{'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: From time to time, we may use your personal information to send important notices, such as communications about purchases and changes to our terms, conditions, and policies. Because this information is important to your interaction with Apple, you may not opt out of receiving these communications. We may also use personal information for internal purposes such as auditing, data analysis, and research to improve Apple's products, services, and customer communications. If you enter into a sweepstake, contest, or similar promotion we may use the information you provide to administer those programs."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]