question: If in one of the images the zebras are all walking in the same direction.
#1 return zebras 
#2 return direction that #1 are walking 
#3 return #1 where  #2 are the  same 
#4 return images 
#5 return number of  #2 for each  #4 
#6 return number of  #3 for each  #4 
#7 return #4 where  #5 is equal to  #6 
#8 return number of  #7 
#9 return if  #8 is equal to  one