question: How many more years did Sparkman serve in the Senate than in the House?
#1 return Sparkman did serve in  the  Senate 
#2 return Sparkman did serve in  the  House 
#3 return years of #1 
#4 return years of #2 
#5 return number of  #3 
#6 return number of  #4 
#7 return difference of #5 and  #6