If the image on the left contains one more wolf than the image on the right.
return the  image  on the   left ;return the  image  on the   right ;return wolves in  #1 ;return wolves in  #2 ;return number of  #3 ;return number of  #4 ;return the  difference of #5 and #6 ;return if  #7 is equal to  one
['select', 'select', 'project', 'project', 'aggregate', 'aggregate', 'arithmetic', 'boolean']