How many more scribes than scholars were in the editorial board created in march of 1773?
return editorial boards ;return #1 that were created in  march of 1773 ;return scribes of #2 ;return scholars of #2 ;return number of  #3 ;return number of  #4 ;return the  difference of #5 and  #6
['select', 'filter', 'project', 'project', 'aggregate', 'aggregate', 'arithmetic']