[{'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: b. Opting-out of interest-based advertising We support the Self-Regulatory Principles for Online Behavioral Advertising of the Digital Advertising Alliance in the US, the Canadian Digital Advertising Alliance in Canada, and the European Digital Advertising Alliance in the EU. Ads that we place online using interest-based data are expected to be delivered with the Enhanced Notice required by those principles."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]