question: If an image shows a pair of vases designed with a curl shape at the bottom.
#1 return vases 
#2 return bottoms of #1 
#3 return #1 where  #2 are designed with a  curl shape 
#4 return images of #3 
#5 return number of  #3 for each  #4 
#6 return #4 where  #5 is equal to  two 
#7 return number of  #6 
#8 return if  #7 is equal to  one