[{'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 page describes current Yahoo practices with respect to this particular service. This information may change as Yahoo revises this service by adding or removing features or using different service providers. To find out how Yahoo treats your personal information, please visit our Privacy Policy."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]