[{'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: STORAGE, SECURITY AND MODIFICATIONS We use means as secure as possible to protect your data. Data are stored in an external server protected behind a firewall."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]