How many more deaths occurred on the Bavarian side than on the Austrian side?
return the  Bavarian side ;return the  Austrian side ;return deaths occurred on #1 ;return deaths occurred on #2 ;return number of  #3 ;return number of  #4 ;return difference of #5 and  #6
['select', 'select', 'project', 'project', 'aggregate', 'aggregate', 'arithmetic']