question_text: Which cost more, the Sikorsky CH-53E Super Stallion cost per flight hour in 2007 or V-22 total cost of ownership per hour in 2013?
decomposition: return cost per  flight hour of the  Sikorsky CH-53E Super Stallion in  2007 ;return total cost of ownership per  hour of  the  V-22 in  2013 ;return which is the  highest of #1 ,  #2