Which city does staff with first name as Janessa and last name as Sawayn live?
return staff ;return first names of  #1 ;return #1 where #2 is  Janessa ;return last names of  #1 ;return #1 where #4 is  Sawayn ;return #1 of  both #3 and  #5 ;return city of  #6
['select', 'project', 'comparative', 'project', 'comparative', 'intersection', 'project']