On what dates did the student with family name "Zieme" and personal name "Bernie" enroll in and complete the courses?
return student ;return family names of #1 ;return personal names of #1 ;return #1 where #2 is Zieme ;return #4 where #3 is Bernie ;return dates that #5 enroll in  courses ;return dates that #5 complete the  courses ;return #6 ,  #7
['select', 'project', 'project', 'comparative', 'comparative', 'project', 'project', 'union']