How many is the difference in the number of yards of the first TD catch by Bryant and the TD pass to Witten?
return Bryant ;return Witten ;return TD  catches of #1 ;return TD  pass of #2 ;return the  first of #3 ;return yards of #5 ;return yards of #4 ;return the  difference of #6 and  #7
['select', 'select', 'project', 'project', 'aggregate', 'project', 'project', 'arithmetic']