[{'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: Back to top 6. Your Choices Some Sega Apps are free-to-play and supported by advertisements. In these instances, you may not opt out of receiving such advertisements. For those Sega Apps that you pay a fee, there may be specific targeted advertising. If you do not wish to be served advertisements, please do not use our Apps. Please contact Sega via email at privacy@sega.net with any questions or comments about your personal information, your consent, your opt-in or opt-out choices, or this MPP, in general."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]