[{'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: Return to top Security, Retention and Storage of Information: We use commercially reasonable procedures to protect the personally-identifying information that we collect. No security system is impenetrable, however. We cannot guarantee the security of our databases, nor can we guarantee that information you supply won't be intercepted while being transmitted to us over the Internet. Please see our Visitor Agreement for more information related to posting materials on our Services including our use of such materials."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]