question: If each image contains exactly three keys and only gold-bodied locks.
#1 return images 
#2 return keys in  #1 
#3 return number of  #2 for each  #1 
#4 return #1 where  #3 is equal to  three 
#5 return locks in  #1 
#6 return #5 that are gold-bodied 
#7 return number of  #5 for each  #1 
#8 return number of  #6 for each  #1 
#9 return #1 where  #8 is equal to  #7 
#10 return #1 in  both  #4 and #9 
#11 return number of  #10 
#12 return number of  #1 
#13 return if  #11 is equal to  #12