How many yards longer was Seneca Wallace's TD pass than Shaun Hills's TD pass in the second half?
return Seneca Wallace ;return Shaun Hills ;return TD  pass of #1 ;return TD  passes of #2 ;return #4 in  the  second half ;return yards of #3 ;return yards of #5 ;return the  difference of #6 and  #7
['select', 'select', 'project', 'project', 'filter', 'project', 'project', 'arithmetic']