[{'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: By principle, the Company destroys, without delay, any personal information whose purpose and use has been accomplished. However, the Company preserves the following information for specified periods of time with the member's consent or when the stipulations of relevant laws and regulations require such preservation. 1) Personal information preserved concerning commercial transactions (1) Information preserved: commercial transaction records (2) Basis for preservation: Law concerning consumer protection in Commercial Law, E-commerce, etc."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]