[{'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: The providers of advertising services are bound to comply with "Do Not Track" settings in mobile phones, but we cannot provide any guarantees on their behalf. If you choose the opt-out option available via our apps, we will not share your device ID with advertisers for the purposes of IBA; or, if already shared, we will remove it from their services. We provide no guarantees regarding the information provided prior to opting out. Some providers may have additional opt-out mechanisms implemented.'}, {'role': 'assistant', 'content': 'This clause is unfair. The privacy practices mentioned are: Identifier_Device_ID_3rdParty.'}]