[{'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 if you choose to click on an ad or participate in promotions of any third-party advertisers via an ad that appears in our website or application, this is solely between you and the advertiser and your participation is subject to the terms and conditions associated with that ad or promotion."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]