Find the first and last name of the staff members who reported problems from the product "rem" but not "aut"?
return staff members ;return problems reported of #1 ;return products of #2 ;return #1 where #3 is rem ;return #1 where #3 is aut ;return #1 besides  #5 ;return #1 in  both #4 and  #6 ;return first names of #7 ;return last names of #7 ;return #8 ,  #9
['select', 'project', 'project', 'comparative', 'comparative', 'discard', 'intersection', 'project', 'project', 'union']