[{'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: Please note that many opt outs use browser cookies or device controls and are specific to the device and browser you are using. If you buy a new computer, change web browsers or devices or delete the cookies on your computer, you may need to opt out again. In addition, ads you receive may still be tailored using other techniques such as publisher, device or browser-enabled targeting. You should check the privacy policies of the products, sites, apps and services you use to learn more about any such techniques and your options."}, {'role': 'assistant', 'content': 'This clause is unfair. The privacy practices mentioned are: Identifier_Cookie_or_similar_Tech_1stParty.'}]