[{'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 document is the sole statement of Our Privacy Policy and no summary, restatement or other version thereof, or other privacy statement or policy, in any form, including, without limitation, machine-generated, is valid."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]