question: If in at least one image there is a single dog facing left that is trying to pull a stack of cement bricks.
#1 return dog 
#2 return #1 that is facing left 
#3 return stack of cement bricks 
#4 return #2 that is trying to  pull #3 
#5 return images 
#6 return number of  #4 for each  #5 
#7 return #5 where  #6 is equal to  one 
#8 return number of  #7 
#9 return if  #8 is at least one