[{'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 retain personal data only as long as necessary for processing it in accordance with the purposes described in this statement, or as otherwise necessary to comply with applicable laws. When your data is no longer necessary or relevant for our purposes, or required by applicable laws, we take steps to have it deleted, aggregated or made anonymous."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]