[{'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: * On iOS devices you can opt-out from any interest-based advertising. Go on Settings. Privacy, Advertising and then click on "Limit Ad-tracking". When you have opted out using this setting on a device, advertisers will not use in-app information collected from that device to infer your interests or serve ads to that device that are targeted based on your inferred interests'}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]