question: If one image shows one gray baby elephant walking with no more than three adults.
#1 return images 
#2 return elephant in  #1 
#3 return #2 that are gray 
#4 return #3 that are babies 
#5 return #3 that are adults 
#6 return #4 walking with #5 
#7 return number of  #5 for each  #6 
#8 return #6 where  #7 is at most three 
#9 return number of  #8 for each  #1 
#10 return #1 where  #9 is equal to  one 
#11 return number of  #10 
#12 return if  #11 is equal to  one