[{'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: Our business changes constantly. This Notice and the Terms and Conditions of Use will change also, and use of information that we gather now is subject to the Privacy Notice in effect at the time of use. We may e-mail periodic reminders of our notices and conditions, unless you have instructed us not to, but you should check our Web site frequently to see recent changes. Unless stated otherwise, our current Privacy Notice applies to all information that we have about you and your account. We stand behind the promises we make, however, and will never materially change our policies and practices to make them less protective of customer information collected in the past without the consent of affected customers."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]