Find the name of instructors who are advisors of the students from the Math department, and sort the results by students' total credit.
return students ;return departments of  #1 ;return #1 where  #2 is  Math ;return advisors of  #3 ;return names of  #4 ;return credits of  #3 ;return sum of  #6 for each #3 ;return #5 sorted by #7
['select', 'project', 'comparative', 'project', 'project', 'project', 'group', 'sort']