Task: Question Generation
Input (English): #1 return one image 
#2 return the  other image 
#3 return pools in  #1 
#4 return pools in  #2 
#5 return number of  #3 
#6 return number of  #4 
#7 return if  #5 is equal to  one 
#8 return if  #6 is equal to  zero 
#9 return if  both  #7 and #8 are true
Output (English): If there is a pool in one image and not the other.