question: If one of the images has no potted plants in it while the other has two.
#1 return one image 
#2 return potted plants in  #1 
#3 return number of  #2 
#4 return if  #3 is equal to  zero 
#5 return other image 
#6 return potted plants in  #5 
#7 return number of  #6 
#8 return if  #7 is equal to  two 
#9 return if  both  #4 and #8 are true