What is the last name of the student who got a grade A in the class with code 10018.
return classes ;return codes of #1 ;return #1 where #2 is equal to 10018 ;return students of #3 ;return grades of #4 ;return #4 where #5 is equal to A ;return last name of #6
['select', 'project', 'comparative', 'project', 'project', 'comparative', 'project']