[{'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: This privacy policy was last updated on November 28, 2012. Our privacy policy may change from time to time. If we make any material changes to our policies, we will place a prominent notice on our website or application."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]