How many is the difference in yards of the TD run by Harvin and the TD pass caught by Quarless?
return Harvin ;return TD  run of #1 ;return yards of #2 ;return Quarless ;return TD  pass caught by #4 ;return yards of #5 ;return difference of #3 and  #6
['select', 'project', 'project', 'select', 'project', 'project', 'arithmetic']