[{'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: From time to time, we may use customer information for new, unanticipated uses not previously disclosed in our privacy notice. If our information practices change at some time in the future we will post the policy changes to our Web site to notify you of these changes and provide you with the ability to opt out of these new uses. If you are concerned about how your information is used, you should check back at our Web site periodically, we will post the policy changes to our Web site to notify you of these changes and we will use for these new purposes only data collected from the time of the policy change forward."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]