[{'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: Storing might be different depending on the territory of collecting the information and the applicable legislation, but we always strive to store the information only as long as it is needed for the purposes of providing, improving or personalizing our services."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]