Which wave had fewer soldiers total, the first or second?
return the  first wave ;return the  second wave ;return soldiers of #1 ;return soldiers of #2 ;return number of  #3 ;return number of  #4 ;return sum of #5 ;return sum of #6 ;return which is the  lowest of #7 ,  #8
['select', 'select', 'project', 'project', 'aggregate', 'aggregate', 'aggregate', 'aggregate', 'comparison']