[{'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 will only retain your personal data for as long as is reasonably necessary for the various purposes set out in section 2 above or to otherwise comply with any applicable laws and regulations concerning the mandatory retention of certain types of information relating to our customers and/or any commercial transactions with them. Should any personal data held by us no longer be required by us for any of the purposes set out in section 2 above "How Sony Mobile uses the information that it collects", we undertake to take reasonable steps to destroy or de-identify any personal data after a reasonable period of time has elapsed.'}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]