[{'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: If you have an Apple device, you can opt out of mobile interest-based or "cross-app" advertising by updating to iOS 6.0 or higher, and setting Limit Ad Tracking to \'ON\'. On an iPhone 6 for example, you can do this by clicking on Settings -> General -> Privacy -> Advertising and toggling "Limit Ad Tracking" to \'ON\'. Our systems are designed to respect your choice and not use Information to provide interest-based advertising when this setting is ON.'}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]