[{'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 may opt-out of receiving promotional emails by following the instructions in those emails. If You opt-out, 69 Studio may still send You non-promotional customer information, such as emails about your account, providing the Service or 69 Studio's ongoing business relations. Changes to the Privacy Policy"}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]