Which running back had more yards, Mark Ingram or Darren Sproles?
return Mark Ingram ;return yards of #1 ;return sum of #2 ;return Darren Sproles ;return yards of #4 ;return sum of #5 ;return which is highest of #3 ,  #6
['select', 'project', 'aggregate', 'select', 'project', 'aggregate', 'comparison']