[{'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: We may also be required to retain, preserve or disclose your Personal Information under the circumstances set out in the "Period of use of your Personal Information" section below.'}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]