question: If each image shows exactly one ferret emerging from a hole in the ground.
#1 return ferret 
#2 return ground 
#3 return hole in  #2 
#4 return #1 that is emerging from  #3 
#5 return images 
#6 return number of  #4 for each  #5 
#7 return #5 where  #6 is equal to  one 
#8 return number of  #5 
#9 return number of  #7 
#10 return if  #8 is equal to  #9