[{'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 opt of certain Interest Based Advertising, you may continue to receive contextual ads based on other non-personal information, such as ads related to the content of the App you are using."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]