[{'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: revisions Privacy Shield Certification Oct 26, 2016 Aug 3, 2016 Nov 20, 2015 apr 14, 2015 apr 10, 2015 feb 24, 2015 jan 15, 2015 jul 18, 2014 may 15, 2014 dec 18, 2013 may 15, 2013 apr 10, 2012"}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]