[{'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: This information may also be used for interest-based advertising. To learn more, you can visit Yahoo's control tool for interest-based advertising. Yahoo may share keywords, package tracking and product identification numbers with third parties in order to enhance your user experience and provide targeted ads."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]