question: How many is the difference in the number of yards of Bush's TD run and the number of yards of the pass to Meachem?
#1 return Bush 
#2 return TD run of   #1 
#3 return yards  of   #2 
#4 return Meachem 
#5 return pass to #4 
#6 return yards  of   #5 
#7 return difference of   #3 and  #6