[{'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: AMENDMENTS TO THE PRIVACY POLICY We may change this Policy at our own discretion and without prior notice. Such changes will be effective when published on the site and your usage of the site will be considered as acceptance of the new Privacy Policy."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]