How many total acres did Posey's band and Polk's band receive after the Bluff War?
return Posey 's  band  ;return Polk 's  band  ;return acres received after the  Bluff War of #1 ;return acres received after the  Bluff War of #2 ;return sum of #3 and  #4
['select', 'select', 'project', 'project', 'arithmetic']